All 179 actors in both Smallville and The Outer Limits
179 actors have appeared in both Smallville and The Outer Limits, across 371 episodes. The most-credited is Camille Mitchell, Sheriff Nancy Adams in Smallville and Leader of Hyacinth, Mother in The Outer Limits.
| Actor | In Smallville | In The Outer Limits | Eps | Eps |
|---|---|---|---|---|
| Camille Mitchell | Sheriff Nancy Adams | Leader of Hyacinth, Mother | 22 | 2 |
| Mitchell Kosterman | Sheriff Ethan Miller | Police Officer | 14 | 1 |
| Sarah Jane Redmond | Nell Potter | Kelly Risely, Kendal's Girlfriend | 11 | 2 |
| Emmanuelle Vaugier | Dr. Helen Bryce | Lisa Dobkins, Shal | 9 | 2 |
| Adrian Holmes | Basqat, Griff | James, Soldier | 7 | 2 |
| Robert Wisden | Gabe Sullivan | Justin Wells, Sam Winter | 6 | 2 |
| Hiro Kanagawa | Principal H. James Kwan | Ron Hikida, Tali | 5 | 2 |
| Jerry Wasserman | Dr. Yaeger Scanlan | Dr. Silcase, Gunther Van Owen, William Talbot | 4 | 3 |
| Fred Henderson | Dr. Langston | Acosta, John | 4 | 2 |
| Lorena Gale | Dr. Claire Foster | Louise, Committee Member | 3 | 3 |
| Malcolm Stewart | Dr. Otis Ford, Dr. Sinclair, Jim Melville | Daniel Tenzer, Joel Haas, Phil Krepuski | 3 | 3 |
| Michael Shanks | Carter Hall / Hawkman | Dr. Will Olsten, Melburn Ross | 4 | 2 |
| Andrew Airlie | Mr. Woodruff | Agent Corey Lonn, Don, Dr. Kevington | 1 | 4 |
| Bruce Harwood | Ben Powell | Dr. Avery Strong, Dr. Norris, Miles Pendergast | 1 | 4 |
| Annette O'Toole | Martha Kent | Commander Lydia Manning | 3 | 1 |
| Colin Lawrence | Agent Stocker, Captain Nichols, Doctor | Technician | 3 | 1 |
| Ron Selmour | Wendell Connelly | Colonel Kikongo | 3 | 1 |
| Teryl Rothery | Board Member #2, Real Estate Agent | Dr. Lucy Cole, Janet Preston | 2 | 2 |
| Jill Teed | Detective Maggie Sawyer | Carolyn, Gwen Hutchinson, Tory Beth Walters | 4 | 3 |
| Donnelly Rhodes | Milash | General James Eiger, Senator O'Reilly | 1 | 2 |
| Gillian Barber | Marianne Taylor | Fisk, Lt. Bateson | 1 | 2 |
| Ian Tracey | Lincoln Cole | Declan McMahon, Mr. Tarquin | 1 | 2 |
| John Novak | Gary Bergen, Jed McNally | Adam Link, Dave Pettigrew, Dr. Stansfield | 2 | 4 |
| Kavan Smith | Wade Mahaney | Allan, Dominic Langton, Harrison Taylor | 1 | 5 |
| Kim Coates | Special Agent Carter | Dave Stockley, Colonel Sage | 3 | 3 |
| Lochlyn Munro | Orlando Block | Captain Eric Woodward, Waters | 1 | 2 |
| Lynda Boyd | Mrs. Baker | Danielle Buchanan, Marie Venable | 1 | 2 |
| Margot Kidder | Bridgette Crosby | Serena | 2 | 1 |
| Rob Freeman | Coach Wayne Quigley | Captain Rosen, Milus O'Brien | 3 | 2 |
| Julian D. Christopher | Dr. MacIntyre | David Aftergood | 6 | 1 |
| Adam J. Harrington | Dr. Litvack | Billy Valentine, Puppet Show Host, Ty Chafey | 1 | 3 |
| Brandy Ledford | Debra Burch | Dr. Elana Chomsky | 1 | 1 |
| Callum Keith Rennie | Tyler McKnight | Carlito | 1 | 1 |
| David Lewis | Dr. Marcus, Macy / Jeweler | Deputy, Joe Oakridge | 2 | 2 |
| Don Thompson | Jack Cole | Doc, Max Buford | 2 | 2 |
| Eric Keenleyside | Mike | Friedkin, Major Ford, Peters | 1 | 3 |
| Gerard Plunkett | Dr. Donovan Jamison | Admiral Birch, George | 2 | 2 |
| JR Bourne | Dr. Bernard Chisholm | Dell Tinker | 1 | 1 |
| Jud Tylor | Amanda Rothman | Violet | 1 | 1 |
| Kevin McNulty | Mr. Summers | Commander, Dr. Leiberman, Everett Costello | 1 | 3 |
| Martin Cummins | Dr. Lawrence Garner | Jack Burrell | 3 | 1 |
| Matthew Walker | Dr. Hudson | Terry Walsh, Trevor Hunter, Winston | 1 | 3 |
| Michael Ironside | General Sam Lane | Ambassador Prosser | 3 | 1 |
| Michael Tomlinson | Ted Palmer | Will Sunderland | 1 | 1 |
| Nathaniel DeVeaux | Commander | Security Captain, Captain, Col. Birch | 2 | 6 |
| Steve Bacic | Garage Worker, Vordigan / Dark Archer | Griff, Roy | 2 | 2 |
| Ty Olsson | Officer Talbert | Franklin | 1 | 1 |
| William B. Davis | Mayor William 'Billy' Tate | Ed, John Wymer | 2 | 2 |
| Mark Gibbon | Mr. Raines, Orderly, SWAT Commander | Bailiff, Male Vorak, Overseer #2 | 3 | 4 |
| Britt Irvin | Courtney Whitmore / Stargirl | Katrine Houghton | 4 | 1 |
| Judith Maxie | Dr. Albright | Judge, Judge Peale, Mayor Gant | 2 | 3 |
| Michael Kopsa | Dean Winters | Commander Ivers, Curtis Sawyer, Detective Broder | 1 | 4 |
| Alan C. Peterson | Senator Ed Burke | Motel Manager | 2 | 1 |
| Andrew McIlroy | Yuri antiquarian | Hal Kaplan, Pallas (Demon) | 1 | 2 |
| Bart Anderson | Drunk | Doctor, Townsman | 1 | 2 |
| Ben Ratner | Hanison | Blanco, Electrician | 1 | 2 |
| Darryl Quon | Club Zero Bouncer, Security Guard #1 | Asian Worker | 2 | 1 |
| G. Patrick Currie | Doctor Lance | Ep, Young Harris | 1 | 2 |
| Garwin Sanford | Ed Brooks | Dom Pardo, Senator Meade | 1 | 2 |
| Jonathan Scarfe | Robert Queen | Charlie Walters, Vince | 1 | 2 |
| Kirsten Alter | Officer Stallings | Pele, Sharon | 1 | 2 |
| Mackenzie Gray | Dr. Alistair Kreig, Lex Luthor Clone | Martin Reese | 2 | 1 |
| Paul Jarrett | Scientist | Dr. Franklin Dreiden, Dr. Mauser | 1 | 2 |
| Robert Picardo | Edward Teague | Emmet Harley | 2 | 1 |
| Shaun Johnston | Matthew Cross | Cop, Parker | 1 | 2 |
| Aaron Pearl | Len Burton | Clark, Lt. Winters, Roger Beckersly | 1 | 3 |
| Blu Mankuma | Franklin W. Stern | Captain John Owens, President, Stanley | 1 | 3 |
| Kwesi Ameyaw | Darius | Policeman #1 | 3 | 1 |
| Sean Millington | Luthor Security Guard, Military police | Delta #1 Leader, Guard | 2 | 2 |
| Tom Heaton | Dexter 'Dex' McCallum | Crazed Man, Jim, Josiah Miller | 1 | 3 |
| Woody Jeffreys | Jack, Mr. Lyon | Beck Sanders, Male Model | 2 | 2 |
| Christine Willes | Granny Goodness | Nurse Yvette | 4 | 1 |
| Frank C. Turner | Eddie Cole, Joe | Elder, Luther, Mikulak | 2 | 3 |
| Tom Butler | Lawrence Grady | Charlie Bouton, Charlie Rogers, Dr. Werner | 1 | 4 |
| Scott Swanson | Doctor | Emil Dobkins, General Baker, Kyle Haller | 1 | 5 |
| Andrew Johnston | Schoolteacher | DeWitt, Mr. Hagen, Warden Taylor | 1 | 3 |
| Brent Stait | Kent Nelson / Dr. Fate | Vince Baxter, Wayne | 1 | 2 |
| Christopher Shyer | Nicholas Conroy | Harold Zimmer | 1 | 1 |
| Dale Wilson | George Fordman | Frank McKenna, General Langston Chase, NORAD General | 1 | 3 |
| Dean McKenzie | Lex's Campaign Manager | Kellar, Newscaster | 2 | 2 |
| Glynis Davies | Mrs. Palmer | Dr. Baker | 1 | 1 |
| John Pyper-Ferguson | Dr. William McBride | Brian Chason | 1 | 1 |
| Kendall Cross | Jessica Kent, Lara-El, Little Girl's Mother | Allison Morris | 3 | 1 |
| Kenneth Welsh | Drunk Santa | Dr. Vasquez | 1 | 1 |
| Michael David Simms | Dr. Neil Moore | Ed | 1 | 1 |
| Michael Hogan | Slade Wilson | Dr. Terrence Sinclair | 2 | 1 |
| Michael St. John Smith | Dr. Thomas Burton, General | Angus Wheaton, Dean Irwin, Dr. Richard Morgan | 2 | 3 |
| Peter Wingfield | Marcus Becker | Dwight Bordon | 1 | 1 |
| Sebastian Spence | Ted Kord | Young Gerry | 1 | 1 |
| Angela Moore | DNA Doctor | African American Woman, Nurse #1, Rutherford | 1 | 3 |
| Fulvio Cecere | Swim Coach Rick Varley | Detective Richard Jacobs, Major, Stottlemeyer | 1 | 3 |
| J.B. Bivens | Museum Security Guard | Mover, Security Guard | 1 | 3 |
| Linden Banks | Jonah Doyle, Scientist | Dr. Thomas Somerset, Hal Taylor | 2 | 2 |
| Adrian G. Griffiths | Blackmailer | Boromir, Warren | 1 | 2 |
| Brenda Crichlow | Guidance Councilor, News Reporter | Kayla | 2 | 1 |
| Jim Shield | James Gibson, Sylvester Pemperton / Star-Spangled Kid | Duro | 2 | 1 |
| Michael Ryan | Psychiatrist | Rex, Thomas Langley Russell | 1 | 2 |
| Patrick Keating | Dr. Heller | GX-17, Technician | 1 | 2 |
| Rick Ravanello | Edward Teague | Driver, Marcus | 1 | 2 |
| Terence Kelly | Doctor | General, Oscar Reynolds | 1 | 2 |
| Veena Sood | Schoolteacher | Dr. Katzman | 2 | 1 |
| Alex Zahara | Dr. Jansen | Karl Rademacher | 1 | 1 |
| Brian Jensen | Coach | Cole | 1 | 1 |
| Claudette Mink | Corinne Hartford | Jessica Brooks | 1 | 1 |
| Daryl Shuttleworth | Vice Principal Martin Gibbons | Burns | 1 | 1 |
| David Lovgren | Derek Fox | Eric Tanner | 1 | 1 |
| Don MacKay | Las Vegas Minister | Dr. Link, Ollie Gibb, Pat Dooley | 1 | 3 |
| Eric Breker | Roy Rothman | Peter Bowman | 1 | 1 |
| Ingrid Torrance | Zoe Flite | Becky | 1 | 1 |
| Keith Martin Gordey | Priest | Pilot | 1 | 1 |
| Ken Kirzinger | Scientist | Moloch | 1 | 1 |
| Nels Lennarson | Ron Milano | Deputy | 1 | 1 |
| Sarah Deakins | Reporter | Megan | 1 | 1 |
| Brad Loree | Bartender, Surgeon | Patrol Android | 2 | 1 |
| Brock Johnson | Edgar Hoyt | Nate Jackson | 2 | 1 |
| Chilton Crane | Guidance Counselor | Elaine Tenzer, Pregnant Woman | 1 | 2 |
| Darryl Scheelar | Assassin | Gorum, Sergeant Laughton | 1 | 2 |
| Dean Marshall | Seattle Police Officer | Corporal Hanford, Mason | 1 | 2 |
| French Tickner | Buster Breyfogle, Simon Westcott | Father Puglia | 2 | 1 |
| Linda Ko | Luthor Lawyer | Female Student, Hanna Sheafer | 1 | 2 |
| Michael Tiernan | Dan Hammond | Major Braithwaite, Vincent | 1 | 2 |
| Scott Bellis | Vice Principal Martin Gibbons, Wendell Kerns | Major Drummond | 2 | 1 |
| Steve Makaj | Coach Calloway, Contractor | Officer Brown | 2 | 1 |
| Alvin Sanders | Dale Ross, Dr. Klein | Chaplain | 2 | 1 |
| Benita Ha | Dr. Asuka | Cute Lab Technician | 1 | 1 |
| Brent Sheppard | Detective Berg | F.B.I. Agent #1 | 1 | 1 |
| Danny Wattley | Deputy | Dennis Cameron, Orderly #2 | 1 | 2 |
| Dee Jay Jackson | Bill Ross, Bus Driver | Guard | 2 | 1 |
| Haig Sutherland | Travis George | Will Monroe | 1 | 1 |
| James Tsai | EMT, Field Team Leader | Technician | 2 | 1 |
| Leanne Adachi | Nurse | Captain Alice Wheeler | 1 | 1 |
| Merrilyn Gann | Ruth Cavanaugh | Gwen Wellington | 1 | 1 |
| Nancy Sivak | Marilyn | Eldon's Wife | 1 | 1 |
| Peter Flemming | Brady | Tom Young | 1 | 1 |
| Tim Guinee | Adrian | Corporal Charles Pendelton | 1 | 1 |
| William MacDonald | Walt Masterson | Gary Rosman, Mugger | 1 | 2 |
| William S. Taylor | Mr. Jacobson | tbd | 1 | 1 |
| Devin Douglas Drewitz | Young Alden | Isaac, Ty Logan | 1 | 2 |
| P. Lynn Johnson | Mrs. Summers | Mrs. Hagen, Vera Dobkins | 1 | 2 |
| Phillip Mitchell | Guard | Mugger, Security Man | 1 | 2 |
| R. Nelson Brown | Dr. Toby | Bartender, Bum | 1 | 2 |
| Arnie Walters | Reverend | Committee Member | 1 | 1 |
| Biski Gugushe | Security Guard | James | 1 | 1 |
| Colin Foo | Card Player | Mr. Chow | 1 | 1 |
| Jase Anthony Griffith | Belle Reve Guard | Medical Technician | 1 | 1 |
| Patricia Mayen-Salazar | Maid | Carmen Ortega | 1 | 1 |
| Rebecca Reichert | Nurse | Mia | 1 | 1 |
| Roman Podhora | Head Bouncer | Commander Louis Vidwell | 1 | 1 |
| Todd Talbot | Dr. Trenton | Reed Hollingsworth | 1 | 1 |
| Tom Pickett | Principal Terrence Reynolds | Security Guard | 1 | 1 |
| Erica Carroll | Inza Nelson | Claudia, Elizabeth Andrews | 1 | 2 |
| Catherine Lough Haggquist | Mary | Reporter | 1 | 1 |
| Colin Cunningham | Nicky Taylor | Professor George Ernst | 1 | 1 |
| D. Neil Mark | Lt. Ray McNulty | Guard | 1 | 1 |
| Deryl Hayes | Detective | Policeman | 1 | 2 |
| Lindsay Bourne | LuthorCorp Employee | Administrator | 1 | 1 |
| Michael Jonsson | Agent | Delta #2 Leader | 1 | 1 |
| Nicholas Harrison | John | Head of Security | 1 | 1 |
| Reg Tupper | Doctor | Walt Coghlan | 1 | 1 |
| Rob Morton | Second Foreman | F.B.I. Agent #2 | 1 | 1 |
| Tiffany Lyndall-Knight | Nurse | Technician | 1 | 1 |
| Ian Robison | Pilot | Grant Kildale | 1 | 1 |
| John Dadey | Gas Company Worker | Special Agent Merton Handy | 1 | 1 |
| Kate Robbins | Mrs. Allen | Perry | 1 | 1 |
| Michasha Armstrong | Max Kasich | Policeman | 1 | 1 |
| Ross Douglas | Skeets | Andy Morgan | 1 | 1 |
| Will Sanderson | Brent | Nelson Tyler | 1 | 1 |
| Bill Finck | Jules Casey | Herman Fitch | 1 | 1 |
| Dave Ward | Inmate #1 | Giant Convict | 1 | 1 |
| Dean Wray | Hiram Kent | Tito | 1 | 1 |
| Donny Lucas | Caribbean man | Hornet | 1 | 1 |
| Matthew Harrison | Technician | Orderly | 1 | 1 |
| Maxine Miller | Mrs. McKnight | Helen | 1 | 1 |
| Candus Churchill | Nurse | Nurse | 1 | 1 |
| Fiona Scott | Haley Timmonds | Tara Akton | 1 | 1 |
| Guy Demong | Valet | A.J. | 1 | 1 |
| Jonathon Ndukwe | TBD | Mean Kid #2 | 1 | 1 |
| Mina E. Mina | Egyptologist | Colonel Paz | 1 | 1 |
| Yvonne Myers | Doctor | Loretta | 1 | 1 |
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Cast data from TVmaze, licensed CC BY-SA 4.0.