Obviously, you should only use this in development environments. This is used to create an abundance of test authors (named after popular TV show characters) in WordPress for testing.
Run this from bash terminal:
wp user create wwhite wwhite@breakingbad.com --role=author --display_name="Walter White" --first_name="Walter" --last_name="White" --send-email=false wp user create swhite swhite@breakingbad.com --role=author --display_name="Skyler White" --first_name="Skyler" --last_name="White" --send-email=false wp user create fwhite fwhite@breakingbad.com --role=author --display_name="Flynn White" --first_name="Flynn" --last_name="White" --send-email=false wp user create hwhite hwhite@breakingbad.com --role=author --display_name="Holly White" --first_name="Holly" --last_name="White" --send-email=false wp user create jpinkman jpinkman@breakingbad.com --role=author --display_name="Jesse Pinkman" --first_name="Jesse" --last_name="Pinkman" --send-email=false wp user create gfring gfring@breakingbad.com --role=author --display_name="Gustavo Fring" --first_name="Gustavo" --last_name="Fring" --send-email=false wp user create hschrader hschrader@breakingbad.com --role=author --display_name="Hank Schrader" --first_name="Hank" --last_name="Schrader" --send-email=false wp user create mschrader mschrader@breakingbad.com --role=author --display_name="Marie Schrader" --first_name="Marie" --last_name="Schrader" --send-email=false wp user create sgoodman sgoodman@breakingbad.com --role=author --display_name="Saul Goodman" --first_name="Saul" --last_name="Goodman" --send-email=false wp user create mehrmantraut mehrmantraut@breakingbad.com --role=author --display_name="Mike Ehrmantraut" --first_name="Mike" --last_name="Ehrmantraut" --send-email=false wp user create lrodarte-quayle lrodarte-quayle@breakingbad.com --role=author --display_name="Lydia Rodarte-Quayle" --first_name="Lydia" --last_name="Rodarte-Quayle" --send-email=false wp user create talquist talquist@breakingbad.com --role=author --display_name="Todd Alquist" --first_name="Todd" --last_name="Alquist" --send-email=false wp user create sgomez sgomez@breakingbad.com --role=author --display_name="Steve Gomez" --first_name="Steve" --last_name="Gomez" --send-email=false wp user create tsalamanca tsalamanca@breakingbad.com --role=author --display_name="Tuco Salamanca" --first_name="Tuco" --last_name="Salamanca" --send-email=false wp user create tbeneke tbeneke@breakingbad.com --role=author --display_name="Ted Beneke" --first_name="Ted" --last_name="Beneke" --send-email=false wp user create bwolynetz bwolynetz@breakingbad.com --role=author --display_name="Bogdan Wolynetz" --first_name="Bogdan" --last_name="Wolynetz" --send-email=false wp user create gboetticher gboetticher@breakingbad.com --role=author --display_name="Gale Boetticher" --first_name="Gale" --last_name="Boetticher" --send-email=false wp user create tkitt tkitt@breakingbad.com --role=author --display_name="Tyrus Kitt" --first_name="Tyrus" --last_name="Kitt" --send-email=false wp user create deladio deladio@breakingbad.com --role=author --display_name="Don Eladio" --first_name="Don" --last_name="Eladio" --send-email=false wp user create jbolsa jbolsa@breakingbad.com --role=author --display_name="Juan Bolsa" --first_name="Juan" --last_name="Bolsa" --send-email=false wp user create hsalamanca hsalamanca@breakingbad.com --role=author --display_name="Hector Salamanca" --first_name="Hector" --last_name="Salamanca" --send-email=false wp user create lsalamanca lsalamanca@breakingbad.com --role=author --display_name="Leonel Salamanca" --first_name="Leonel" --last_name="Salamanca" --send-email=false wp user create msalamanca msalamanca@breakingbad.com --role=author --display_name="Marco Salamanca" --first_name="Marco" --last_name="Salamanca" --send-email=false wp user create acantillo acantillo@breakingbad.com --role=author --display_name="Andrea Cantillo" --first_name="Andrea" --last_name="Cantillo" --send-email=false wp user create bcantillo bcantillo@breakingbad.com --role=author --display_name="Brock Cantillo" --first_name="Brock" --last_name="Cantillo" --send-email=false wp user create jmargolis jmargolis@breakingbad.com --role=author --display_name="Jane Margolis" --first_name="Jane" --last_name="Margolis" --send-email=false wp user create dmargolis dmargolis@breakingbad.com --role=author --display_name="Donald Margolis" --first_name="Donald" --last_name="Margolis" --send-email=false wp user create bmayhew bmayhew@breakingbad.com --role=author --display_name="Brandon Mayhew" --first_name="Brandon" --last_name="Mayhew" --send-email=false wp user create cortega cortega@breakingbad.com --role=author --display_name="Christian Ortega" --first_name="Christian" --last_name="Ortega" --send-email=false wp user create spete spete@breakingbad.com --role=author --display_name="Skinny Pete" --first_name="Skinny" --last_name="Pete" --send-email=false wp user create apinkman apinkman@breakingbad.com --role=author --display_name="Adam Pinkman" --first_name="Adam" --last_name="Pinkman" --send-email=false wp user create jpinkman jpinkman@breakingbad.com --role=author --display_name="Jake Pinkman" --first_name="Jake" --last_name="Pinkman" --send-email=false wp user create hbabineaux hbabineaux@breakingbad.com --role=author --display_name="Huell Babineaux" --first_name="Huell" --last_name="Babineaux" --send-email=false wp user create pkuby pkuby@breakingbad.com --role=author --display_name="Patrick Kuby" --first_name="Patrick" --last_name="Kuby" --send-email=false wp user create harchilleya harchilleya@breakingbad.com --role=author --display_name="Hugo Archilleya" --first_name="Hugo" --last_name="Archilleya" --send-email=false wp user create lcorbett lcorbett@breakingbad.com --role=author --display_name="Louis Corbett" --first_name="Louis" --last_name="Corbett" --send-email=false wp user create cmolina cmolina@breakingbad.com --role=author --display_name="Carmen Molina" --first_name="Carmen" --last_name="Molina" --send-email=false wp user create gschwartz gschwartz@breakingbad.com --role=author --display_name="Gretchen Schwartz" --first_name="Gretchen" --last_name="Schwartz" --send-email=false wp user create eschwartz eschwartz@breakingbad.com --role=author --display_name="Elliott Schwartz" --first_name="Elliott" --last_name="Schwartz" --send-email=false wp user create dsharp dsharp@breakingbad.com --role=author --display_name="Drew Sharp" --first_name="Drew" --last_name="Sharp" --send-email=false wp user create jwelker jwelker@breakingbad.com --role=author --display_name="Jack Welker" --first_name="Jack" --last_name="Welker" --send-email=false wp user create dmolina dmolina@breakingbad.com --role=author --display_name="Domingo Molina" --first_name="Domingo" --last_name="Molina" --send-email=false wp user create ekoyama ekoyama@breakingbad.com --role=author --display_name="Emilio Koyama" --first_name="Emilio" --last_name="Koyama" --send-email=false wp user create dwachsberger dwachsberger@breakingbad.com --role=author --display_name="Dan Wachsberger" --first_name="Dan" --last_name="Wachsberger" --send-email=false wp user create dmarkowski dmarkowski@breakingbad.com --role=author --display_name="Dennis Markowski" --first_name="Dennis" --last_name="Markowski" --send-email=false wp user create bgoodman bgoodman@breakingbad.com --role=author --display_name="Barry Goodman" --first_name="Barry" --last_name="Goodman" --send-email=false wp user create rforenall rforenall@breakingbad.com --role=author --display_name="Ron Forenall" --first_name="Ron" --last_name="Forenall" --send-email=false wp user create dchow dchow@breakingbad.com --role=author --display_name="Duane Chow" --first_name="Duane" --last_name="Chow" --send-email=false wp user create marciniega marciniega@breakingbad.com --role=author --display_name="Maximino Arciniega" --first_name="Maximino" --last_name="Arciniega" --send-email=false wp user create troberts troberts@breakingbad.com --role=author --display_name="Tim Roberts" --first_name="Tim" --last_name="Roberts" --send-email=false wp user create gmerkert gmerkert@breakingbad.com --role=author --display_name="George Merkert" --first_name="George" --last_name="Merkert" --send-email=false
This is also available on GitHub.
For extra credit, here is one for Prison Break characters:
wp user create mscofield mscofield@prisonbreak.com --role=author --display_name="Michael Scofield" --first_name="Michael" --last_name="Scofield" --send-email=false wp user create lburrows lburrows@prisonbreak.com --role=author --display_name="Lincoln Burrows" --first_name="Lincoln" --last_name="Burrows" --send-email=false wp user create vdonovan vdonovan@prisonbreak.com --role=author --display_name="Veronica Donovan" --first_name="Veronica" --last_name="Donovan" --send-email=false wp user create lburrows lburrows@prisonbreak.com --role=author --display_name="LJ Burrows" --first_name="LJ" --last_name="Burrows" --send-email=false wp user create fsucre fsucre@prisonbreak.com --role=author --display_name="Fernando Sucre" --first_name="Fernando" --last_name="Sucre" --send-email=false wp user create tbagwell tbagwell@prisonbreak.com --role=author --display_name="Theodore Bagwell" --first_name="Theodore" --last_name="Bagwell" --send-email=false wp user create jabruzzi jabruzzi@prisonbreak.com --role=author --display_name="John Abruzzi" --first_name="John" --last_name="Abruzzi" --send-email=false wp user create bbellick bbellick@prisonbreak.com --role=author --display_name="Brad Bellick" --first_name="Brad" --last_name="Bellick" --send-email=false wp user create stancredi stancredi@prisonbreak.com --role=author --display_name="Sara Tancredi" --first_name="Sara" --last_name="Tancredi" --send-email=false wp user create pkellerman pkellerman@prisonbreak.com --role=author --display_name="Paul Kellerman" --first_name="Paul" --last_name="Kellerman" --send-email=false wp user create amahone amahone@prisonbreak.com --role=author --display_name="Alexander Mahone" --first_name="Alexander" --last_name="Mahone" --send-email=false wp user create jwhistler jwhistler@prisonbreak.com --role=author --display_name="James Whistler" --first_name="James" --last_name="Whistler" --send-email=false wp user create nst.john nst.john@prisonbreak.com --role=author --display_name="Norman St.John" --first_name="Norman" --last_name="St.John" --send-email=false wp user create slugo slugo@prisonbreak.com --role=author --display_name="Sofia Lugo" --first_name="Sofia" --last_name="Lugo" --send-email=false wp user create gmorgan gmorgan@prisonbreak.com --role=author --display_name="Gretchen Morgan" --first_name="Gretchen" --last_name="Morgan" --send-email=false wp user create dself dself@prisonbreak.com --role=author --display_name="Donald Self" --first_name="Donald" --last_name="Self" --send-email=false wp user create jkrantz jkrantz@prisonbreak.com --role=author --display_name="Jonathan Krantz" --first_name="Jonathan" --last_name="Krantz" --send-email=false wp user create bkim bkim@prisonbreak.com --role=author --display_name="Bill Kim" --first_name="Bill" --last_name="Kim" --send-email=false wp user create creynolds creynolds@prisonbreak.com --role=author --display_name="Caroline Reynolds" --first_name="Caroline" --last_name="Reynolds" --send-email=false wp user create cscofield cscofield@prisonbreak.com --role=author --display_name="Christina Scofield" --first_name="Christina" --last_name="Scofield" --send-email=false wp user create dapolskis dapolskis@prisonbreak.com --role=author --display_name="David Apolskis" --first_name="David" --last_name="Apolskis" --send-email=false wp user create cwestmoreland cwestmoreland@prisonbreak.com --role=author --display_name="Charles Westmoreland" --first_name="Charles" --last_name="Westmoreland" --send-email=false wp user create cpatoshik cpatoshik@prisonbreak.com --role=author --display_name="Charles Patoshik" --first_name="Charles" --last_name="Patoshik" --send-email=false wp user create gfiorello gfiorello@prisonbreak.com --role=author --display_name="Gus Fiorello" --first_name="Gus" --last_name="Fiorello" --send-email=false wp user create msanchez msanchez@prisonbreak.com --role=author --display_name="Manche Sanchez" --first_name="Manche" --last_name="Sanchez" --send-email=false wp user create abalz-johnson abalz-johnson@prisonbreak.com --role=author --display_name="Avocado Balz-Johnson" --first_name="Avocado" --last_name="Balz-Johnson" --send-email=false wp user create shoffner shoffner@prisonbreak.com --role=author --display_name="Seth Hoffner" --first_name="Seth" --last_name="Hoffner" --send-email=false wp user create ctrokey ctrokey@prisonbreak.com --role=author --display_name="Christopher Trokey" --first_name="Christopher" --last_name="Trokey" --send-email=false wp user create jbuchanon jbuchanon@prisonbreak.com --role=author --display_name="Jason Buchanon" --first_name="Jason" --last_name="Buchanon" --send-email=false wp user create hpope hpope@prisonbreak.com --role=author --display_name="Henry Pope" --first_name="Henry" --last_name="Pope" --send-email=false wp user create epavelka epavelka@prisonbreak.com --role=author --display_name="Ed Pavelka" --first_name="Ed" --last_name="Pavelka" --send-email=false wp user create rgeary rgeary@prisonbreak.com --role=author --display_name="Roy Geary" --first_name="Roy" --last_name="Geary" --send-email=false wp user create lpatterson lpatterson@prisonbreak.com --role=author --display_name="Louis Patterson" --first_name="Louis" --last_name="Patterson" --send-email=false wp user create kstolte kstolte@prisonbreak.com --role=author --display_name="Keith Stolte" --first_name="Keith" --last_name="Stolte" --send-email=false wp user create rgreen rgreen@prisonbreak.com --role=author --display_name="Rizzo Green" --first_name="Rizzo" --last_name="Green" --send-email=false wp user create mandrews mandrews@prisonbreak.com --role=author --display_name="Mack Andrews" --first_name="Mack" --last_name="Andrews" --send-email=false wp user create thudson thudson@prisonbreak.com --role=author --display_name="Tyler Hudson" --first_name="Tyler" --last_name="Hudson" --send-email=false wp user create kwelch kwelch@prisonbreak.com --role=author --display_name="Katie Welch" --first_name="Katie" --last_name="Welch" --send-email=false wp user create ksklar ksklar@prisonbreak.com --role=author --display_name="Kenny Sklar" --first_name="Kenny" --last_name="Sklar" --send-email=false wp user create nsavrinn nsavrinn@prisonbreak.com --role=author --display_name="Nick Savrinn" --first_name="Nick" --last_name="Savrinn" --send-email=false wp user create sabruzzi sabruzzi@prisonbreak.com --role=author --display_name="Sylvia Abruzzi" --first_name="Sylvia" --last_name="Abruzzi" --send-email=false wp user create havila havila@prisonbreak.com --role=author --display_name="Hector Avila" --first_name="Hector" --last_name="Avila" --send-email=false wp user create dbelle dbelle@prisonbreak.com --role=author --display_name="Debra Belle" --first_name="Debra" --last_name="Belle" --send-email=false wp user create pcordero pcordero@prisonbreak.com --role=author --display_name="Petey Cordero" --first_name="Petey" --last_name="Cordero" --send-email=false wp user create mdelgado mdelgado@prisonbreak.com --role=author --display_name="Maricruz Delgado" --first_name="Maricruz" --last_name="Delgado" --send-email=false wp user create tdelgado tdelgado@prisonbreak.com --role=author --display_name="Theresa Delgado" --first_name="Theresa" --last_name="Delgado" --send-email=false wp user create pfalzone pfalzone@prisonbreak.com --role=author --display_name="Philly Falzone" --first_name="Philly" --last_name="Falzone" --send-email=false wp user create ofibonacci ofibonacci@prisonbreak.com --role=author --display_name="Otto Fibonacci" --first_name="Otto" --last_name="Fibonacci" --send-email=false wp user create dfranklin dfranklin@prisonbreak.com --role=author --display_name="Dede Franklin" --first_name="Dede" --last_name="Franklin" --send-email=false wp user create kfranklin kfranklin@prisonbreak.com --role=author --display_name="Kacee Franklin" --first_name="Kacee" --last_name="Franklin" --send-email=false wp user create shollander shollander@prisonbreak.com --role=author --display_name="Susan Hollander" --first_name="Susan" --last_name="Hollander" --send-email=false wp user create dmorgan dmorgan@prisonbreak.com --role=author --display_name="Darius Morgan" --first_name="Darius" --last_name="Morgan" --send-email=false wp user create arix arix@prisonbreak.com --role=author --display_name="Adrian Rix" --first_name="Adrian" --last_name="Rix" --send-email=false wp user create lrix lrix@prisonbreak.com --role=author --display_name="Lisa Rix" --first_name="Lisa" --last_name="Rix" --send-email=false wp user create gsmallhouse gsmallhouse@prisonbreak.com --role=author --display_name="Gavin Smallhouse" --first_name="Gavin" --last_name="Smallhouse" --send-email=false wp user create dsweeney dsweeney@prisonbreak.com --role=author --display_name="Derek Sweeney" --first_name="Derek" --last_name="Sweeney" --send-email=false wp user create nvolek nvolek@prisonbreak.com --role=author --display_name="Nika Volek" --first_name="Nika" --last_name="Volek" --send-email=false wp user create rglenn rglenn@prisonbreak.com --role=author --display_name="Roland Glenn" --first_name="Roland" --last_name="Glenn" --send-email=false wp user create flang flang@prisonbreak.com --role=author --display_name="Felicia Lang" --first_name="Felicia" --last_name="Lang" --send-email=false wp user create mwheeler mwheeler@prisonbreak.com --role=author --display_name="Mark Wheeler" --first_name="Mark" --last_name="Wheeler" --send-email=false
Again, available on GitHub.