All 143 actors in both Arrow and Smallville
143 actors have appeared in both Arrow and Smallville, across 387 episodes. The most-credited is Camille Mitchell, Maria Bertinelli in Arrow and Sheriff Nancy Adams in Smallville.
| Actor | In Arrow | In Smallville | Eps | Eps |
|---|---|---|---|---|
| Camille Mitchell | Maria Bertinelli | Sheriff Nancy Adams | 1 | 22 |
| Adrian Holmes | Lt. Frank Pike | Basqat, Griff | 15 | 7 |
| Mike Dopud | Viktor | Security Guard George | 6 | 10 |
| Sarah Jane Redmond | Mrs. Reston | Nell Potter | 1 | 11 |
| Byron Mann | Yao Fei Gulong | Commander Cheng, Dave Kern | 12 | 2 |
| Hiro Kanagawa | Dr. Neil Lamb | Principal H. James Kwan | 2 | 5 |
| Ron Selmour | The Butcher | Wendell Connelly | 4 | 3 |
| Dylan Neal | Dr. Anthony Ivo | Ray Sacks | 10 | 2 |
| Marrett Green | Merritt Davis | TV News Anchor | 23 | 1 |
| Stephen Lobo | Jim Corrigan / The Spectre | Randall Brady | 1 | 5 |
| Danny Wattley | Sgt. F. Bingsley | Deputy | 4 | 1 |
| Fred Henderson | Mr. Gardner | Dr. Langston | 1 | 4 |
| Ryan McDonell | Uniform | Stuart Campbell | 1 | 4 |
| Lexa Doig | Talia al Ghul | Dr. Christina Lamell | 8 | 1 |
| Colin Lawrence | Paul Knox | Agent Stocker, Captain Nichols, Doctor | 1 | 3 |
| Malcolm Stewart | Thomas Kemp | Dr. Otis Ford, Dr. Sinclair, Jim Melville | 1 | 3 |
| Michael Daingerfield | Ned Foster | Gordon Godfrey / Darkseid, Security Guard | 3 | 5 |
| Rekha Sharma | Claire Abbott | Dr. Harden | 1 | 7 |
| Tahmoh Penikett | Nick Salvati | Wesly Keenan, Vince Davis | 1 | 3 |
| Françoise Yip | The Priestess | Dr. Lia Teng | 2 | 5 |
| Teryl Rothery | Jean Loring | Board Member #2, Real Estate Agent | 7 | 2 |
| Brendan Fletcher | Stanley Dover | Rudy Jones / Parasite | 7 | 1 |
| Christie Laing | Carly Diggle | Katherine Goodwin, Mindy | 6 | 2 |
| James Kidnie | Milo Armitage | Amos Fortune | 4 | 1 |
| Jill Teed | Dr. Avery Presnall | Detective Maggie Sawyer | 1 | 4 |
| John DeSantis | Reaper Tattoo | Male Zoner, Solomon Grundy, The Traveler | 2 | 3 |
| Ryan Robbins | Conklin | Louis Leery Jr. | 9 | 1 |
| Jesse Hutch | Officer Daily | Troy Turner, Billy Durden | 6 | 3 |
| Richard Keats | Dr. Lockhart | Doctor | 7 | 2 |
| Chelah Horsdal | Kate Spencer | Dr. McCann | 5 | 1 |
| Darryl Quon | Shimosawa | Club Zero Bouncer, Security Guard #1 | 2 | 2 |
| Alison Araya | Officer Lopez | Nurse | 8 | 1 |
| Dalias Blake | Bank Guard, SWAT Leader | Security Guard | 2 | 1 |
| Dean McKenzie | Dennis | Lex's Campaign Manager | 4 | 2 |
| Aleks Paunovic | Felton | Orderly, Thug #1 | 2 | 2 |
| Dean Redman | Security Guard #2 | Lab Guard, Police Officer, Policeman | 1 | 3 |
| Michael Eklund | Barton Mathis | Richter Maddox, Will | 2 | 2 |
| Paul Lazenby | Inmate, Mr. Robbins, Thug | Tony | 3 | 1 |
| Steve Bacic | Sean Sonus | Garage Worker, Vordigan / Dark Archer | 2 | 2 |
| Michael Jonsson | Kodiak | Agent | 4 | 1 |
| Adrian McMorran | Murmur | Jeremy Creek / The Electric Scarecrow | 5 | 1 |
| Christopher Heyerdahl | Damien Darhk Cut-Out | Zor-El | 1 | 2 |
| Daniel Bacon | Reporter | FBI Agent | 1 | 2 |
| Dario Delacio | Costa | Doomsday | 1 | 2 |
| Doug Chapman | Baker, Soldier #1 | Deputy | 3 | 1 |
| Jaeson Lee | Mercenary, Cavanaugh, SCPD Uni #1 | Neutron | 6 | 1 |
| Kimani Ray Smith | Gangbanger #1 | Bus Driver, Monitoring Astronomer | 1 | 2 |
| Lauro Chartrand | Thug | Alex, Thief | 1 | 2 |
| Lochlyn Munro | Captain Stein | Orlando Block | 1 | 1 |
| Michael Kopsa | Siilhouetted Man, The Prisoner | Dean Winters | 2 | 1 |
| Nickolas Baric | Nathan Sierra, Thug #1, Vincent Steelgrave | Thug #2 | 3 | 1 |
| Nolan Gerard Funk | Cooper Seldon | Zack Greenfield | 3 | 1 |
| Rick Faraci | Biker Leader | Prisoner | 1 | 2 |
| Tristan Jensen | Oliver's Security Detail, Bodyguard | Police Officer | 5 | 1 |
| Viv Leacock | Raven | Agent Simon, Co-Pilot | 1 | 2 |
| Woody Jeffreys | Prison Guard | Jack, Mr. Lyon | 1 | 2 |
| Carmen Moore | Mina Fayad | Carmen | 3 | 1 |
| Lynda Boyd | Phaedra Nixon | Mrs. Baker | 3 | 1 |
| Alexander Kalugin | Hooded Man | TBD | 5 | 1 |
| Bradley Stryker | Vincent | Deadshot | 1 | 2 |
| Derek Hamilton | Aglin, Mask | Tim Westcott | 2 | 1 |
| Eileen Pedde | Doctor | Jennifer Small | 1 | 2 |
| James Michalopolous | Black Hawk Guard | Carjacker, Prisoner | 1 | 2 |
| Jim Shield | Keating | James Gibson, Sylvester Pemperton / Star-Spangled Kid | 1 | 2 |
| John Shaw | George Wolfman | Cave Scientist | 1 | 2 |
| Michael Adamthwaite | Torque | Andrew Connors, Rick | 1 | 2 |
| Ryan Booth | Peter Yorke | Technician | 2 | 1 |
| Serge Houde | Judge Brackett | John Frankle, Priest | 1 | 2 |
| Alex Zahara | Anthony Venza | Dr. Jansen | 1 | 1 |
| Douglas Arthurs | Brick Thug #1 | Snake | 1 | 1 |
| Eric Breker | Leo Mueller | Roy Rothman | 1 | 1 |
| JR Bourne | Jimmy Tell / Double Down | Dr. Bernard Chisholm | 1 | 1 |
| Kyle Schmid | Kyle Reston | Sebastian Kane | 1 | 1 |
| Mark Gibbon | Ops Leader | Mr. Raines, Orderly, SWAT Commander | 1 | 3 |
| Nels Lennarson | Anson | Ron Milano | 1 | 1 |
| Ty Olsson | Martin Somers | Officer Talbert | 1 | 1 |
| Brad Loree | Angry Person | Bartender, Surgeon | 1 | 2 |
| Brock Johnson | Counterfeiter | Edgar Hoyt | 1 | 2 |
| Darryl Scheelar | Councillor, Security Guard #1 | Assassin | 2 | 1 |
| Fraser Aitcheson | Chains | Ethan Carter | 1 | 2 |
| Steve Makaj | Josiah Hudson | Coach Calloway, Contractor | 1 | 2 |
| Nigel Vonas | Mercenary #2 / Walsh | Deputy | 3 | 1 |
| Adrian G. Griffiths | Malcolm's Bodyguard | Blackmailer | 1 | 1 |
| Beverley Breuer | Irene Clayton | Rose Greer | 1 | 1 |
| Brad Kelly | Nico, Thug | Thug #3 | 2 | 1 |
| Carmen Lavigne | Erica Vendel | Valentine Fairy | 1 | 1 |
| Emy Aneke | Untouchable #2 | Robert Pontius | 1 | 1 |
| Evan Frayne | Jared Swanstrom | Jewelry Store Employee | 1 | 1 |
| Garwin Sanford | Justin Claybourne | Ed Brooks | 1 | 1 |
| Ken Lawson | Talking Head | Wesley Dodds / Sandman | 2 | 1 |
| Kevan Ohtsji | Alan Chang | Danny Kwan | 2 | 1 |
| Lini Evans | Business Suit | Reporter | 1 | 1 |
| Michael Rogers | Sergei | Agent Black | 1 | 1 |
| Mike Miguel Hanus | Sergio | Inmate #2 | 3 | 1 |
| Nathan Dashwood | Hoodlum | Tommy Walker | 1 | 1 |
| Terry Chen | Soldier | Detective Paul Cage | 1 | 1 |
| William C. Vaughan | Rob Scott | Mr. Jones / Agent Vactor | 1 | 1 |
| Ben Cotton | Dave Hackett | Paul Hendrix | 1 | 1 |
| Colin Foo | Proprietor | Card Player | 1 | 1 |
| Danielle Kremeniuk | District Attorney | EMT #1 | 1 | 1 |
| Michael Tiernan | Ramesses II | Dan Hammond | 1 | 1 |
| Mike Klemak | Counsellor | Police Officer | 1 | 1 |
| Ona Grauer | Vivian | Dr. Gabrielle Vaughan | 1 | 1 |
| Peter Benson | D.A. Gavin Carnahan | Young Dexter 'Dex' McCallum | 1 | 1 |
| Raf Rogers | HIVE Scientist | Francisco | 1 | 1 |
| Richard Stroh | Security Guard #1 | Davidson | 1 | 1 |
| Rick Tae | Triad Accountant | Dr. Hong | 1 | 1 |
| Sandy Wayne Robson | Security Guard #1 | Ellis | 1 | 1 |
| Tim Perez | Tomas | Agent Tobin | 1 | 1 |
| James Ralph | Bodyguard, Lt. Robert Lockhart | Deputy Markowitz | 2 | 1 |
| Karen Holness | Jana Washington, Untouchable #1 | Jessica Bishop | 2 | 1 |
| Phillip Mitchell | Guard, Potluck | Guard | 2 | 1 |
| Colin Corrigan | Volunteer | Dante's Mechanic | 1 | 1 |
| Curtis Caravaggio | Eddie Walczak | Wingate Owner | 1 | 1 |
| Elizabeth Thai | Reporter #3 | Mary | 1 | 1 |
| Jase Anthony Griffith | Jeff Deveau | Belle Reve Guard | 1 | 1 |
| Shawn Stewart | Guard #2 | Security Guard | 1 | 1 |
| Sylvesta Stuart | Head Gangbanger, Pirate #3 | Airport Security Guard | 2 | 1 |
| Aaron Pearl | Untouchable #3 | Len Burton | 1 | 1 |
| Dean Marshall | Emergency Services | Seattle Police Officer | 1 | 1 |
| Glenn Ennis | Ankov | Metropolis Police Officer | 1 | 1 |
| Sage Brocklebank | Desk Guard | James | 1 | 1 |
| Tom Stevens | Teddy Reston | Clayton | 1 | 1 |
| Angelo Renai | Nate Parsons | Plastic Surgeon | 1 | 1 |
| Annabel Kershaw | Middle Aged Woman | Flower Shopper | 1 | 1 |
| Colby Wilson | Corrupt Cop #1 | Berger | 1 | 1 |
| Donny Lucas | Customs Agent | Caribbean man | 1 | 1 |
| Kurt Evans | Alex Salese | EMT | 1 | 1 |
| Lucas Wolf | League Assassin | Security Guard | 1 | 1 |
| Todd Thomson | Minister | Secretary of Defense | 1 | 1 |
| Alistair Abell | Charles Aked | Med Professor | 1 | 1 |
| Christian Sloan | Dealer | Ben | 1 | 1 |
| Elizabeth Weinstein | Female Hostage | Presidential Advisor | 1 | 1 |
| Jeremy Jones | Gun Dealer | Henry's Father | 1 | 1 |
| Jorge Vargas | Junkie | Male Gangbanger | 1 | 1 |
| Lane Edwards | Peter Declan | Agent James Shepard | 1 | 1 |
| Marc-Anthony Massiah | Agent Kosinski | Emerson | 1 | 1 |
| Marcus Sim | Li Khuan Hui | Marcus | 1 | 1 |
| Michasha Armstrong | Merlyn Security #2 | Max Kasich | 1 | 1 |
| Ash Lee | Staffer #1 | Production Assistant | 1 | 1 |
| Gardiner Millar | Bertinelli's Thug | FBI Agent | 1 | 1 |
| Kaare Anderson | ESU Leader | Ramierez | 1 | 1 |
| Desiree Zurowski | Family Lawyer | Minister | 1 | 1 |
Cast data from TVmaze, licensed CC BY-SA 4.0.