All 85 actors in both Stargate SG·1 and The Flash
85 actors have appeared in both Stargate SG·1 and The Flash, across 397 episodes. The most-credited is Michelle Harrison, Assistant in Stargate SG·1 and Nora Allen, Speed Force Nora, Joan Williams in The Flash.
| Actor | In Stargate SG·1 | In The Flash | Eps | Eps |
|---|---|---|---|---|
| Michelle Harrison | Assistant | Nora Allen, Speed Force Nora, Joan Williams | 1 | 31 |
| Carmen Moore | Lab Assistant | Kristen Kramer | 1 | 21 |
| Bill Dow | Dr. Bill Lee | Quentin Quale | 20 | 1 |
| Danielle Nicolet | Reese | DA Cecile Horton | 1 | 20 |
| Tony Todd | Lord Haikon | Zoom | 3 | 14 |
| Robert Picardo | Richard Woolsey | Dexter Myles | 7 | 3 |
| Morena Baccarin | Adria | Gideon | 5 | 14 |
| Nickolas Baric | SSgt. Shandler, Penhall, F-302 Pilot | Security Guard #1, Thug #2 | 16 | 3 |
| Kendall Cross | Julia Donovan | Mayor Van Buren | 4 | 2 |
| Tobin Bell | Omoc | Savitar, Dr. Alchemy | 1 | 15 |
| Dan Payne | Kull Warrior, Jaffa, Super Soldier | Shay Lamden | 14 | 1 |
| Fraser Aitcheson | Jaffa, Hathor's Jaffa, Jaffa Commander | City Worker #2, Criminal Passenger, Prison Gang-Goon #1 | 20 | 3 |
| Peter Flemming | Agent Malcolm Barrett | John Kane | 6 | 1 |
| Shawn Stewart | Jaffa | Mitch Romero | 10 | 3 |
| James Michalopolous | SF Guard, Jaffa, F-302 Pilot | Security Guard #1 | 18 | 1 |
| Hugo Steele | Jaffa Guard, SG-22 Member | Security Guard #1 | 16 | 1 |
| Simon Burnett | Jaffa, Orderly, TSgt. Burnett | Grodd | 6 | 7 |
| Paul Lazenby | Jaffa, Prometheus Crew Member, SF Guard | Tech Thief #2 | 10 | 1 |
| Sean Millington | SSgt. Peterson, Jaffa, Ronac | Prison Gang Leader | 10 | 1 |
| Jerry Wasserman | Bernie Whitlow, Stan | President of the U.S.A. | 2 | 1 |
| Martin Novotny | NID Interrogation-Room Guard | Hannibal Bates | 1 | 2 |
| Peter Kelamis | Coyle Boron, Dr. Brent Langham | Inspector Howard | 2 | 1 |
| Herbert Duncanson | Douglas Anders / Grell, SG Guard, SG-12 Leader | Sergeant Bates | 6 | 2 |
| Paul Jarrett | SG-5 Member, Special Agent Farrity | General Matthew McNally | 3 | 1 |
| Paul McGillion | Young Ernest Littlefield | Earl Cox | 1 | 3 |
| Tom Butler | Major General Trofsky | Eric Larkin | 2 | 2 |
| Fulvio Cecere | Col. Davidson | Officer Vukovich | 2 | 3 |
| Everick Golding | Harem Guard 2 | Trevor Shinick, Corrections Officer | 1 | 5 |
| Sylvesta Stuart | Jaffa, Plunkett, SF Guard | Technician | 6 | 1 |
| Finn Michael | Councilman, Crew Member, Guard | Hawkshaw | 7 | 1 |
| Michael F. Roselli | Jaffa | Large Meta | 8 | 1 |
| Aaron Craven | Capt. Kyle Rogers, Kinsey's worshipper, Matar | Attorney Greg Turk | 3 | 1 |
| Aaron Douglas | Jaffa, Moac | Russell Glosson / The Turtle | 2 | 2 |
| Chad Bellamy | Airman Graf, Jaffa, Lucian Guardian | Goon #1, Prison Gang-Goon #2 | 5 | 2 |
| Daniel Cudmore | Jaffa | William Lang / Gridlock | 2 | 1 |
| Michasha Armstrong | Shak'l | Java | 2 | 1 |
| Tiffani Timms | Blonde Girl | Tiffany Smith | 1 | 2 |
| Gardiner Millar | Yat'yir | Tony Rawlins | 5 | 1 |
| Paul Anthony | Slave | Ray Bivolo | 2 | 3 |
| Peter Bryant | Hoskins, Fro'tak | Fire Chief | 3 | 1 |
| Michael Karl Richards | Guardsman | Cop #1, Paulson | 1 | 2 |
| Scott McNeil | Keflin, Townsperson | Julius | 2 | 1 |
| Phillip Mitchell | Jaffa, Guy #1, Major Graham | Security Guard | 4 | 1 |
| Catherine Lough Haggquist | Technical Sergeant | Vickie Bolen | 1 | 1 |
| Lucas Wolf | Jennings | Thug #3 | 3 | 1 |
| Roger Haskett | Doctor, Dr. Bill Thompson | Doctor | 3 | 1 |
| Sean Carey | Galaran Security Private | Stanley Ellis | 1 | 1 |
| Sean Owen Roberts | Driver | Clay Stanley | 1 | 1 |
| Chris Robson | Caledonian radioman, SSgt. Walker | Tech #1 / Dr. Jeffrey Shore | 2 | 1 |
| Kirby Morrow | Militia Man, Tara'c | Coach | 2 | 1 |
| Dean Hinchey | Bodyguard, Dr. Kevin Hartkans, Medic | Decorator | 4 | 1 |
| Alistair Abell | Ian Patterson, Jayem Saran | ER Doctor | 2 | 1 |
| Andy Thompson | Calvin | Dr. Bruce Bonwitt | 1 | 1 |
| Bruce Harwood | Dr. Osbourne | Dexter Myles | 1 | 1 |
| Charles Zuckermann | Rebel Soldier | Bert | 1 | 1 |
| Nancy McClure | Young Catherine | Penelope Dearbon | 1 | 2 |
| Paul Batten | French Ambassador | Dr. Ortiz | 1 | 1 |
| Richard Zeman | Lourdes Maylay | Lucious Coolidge / Heat Monger | 1 | 1 |
| Mark Brandon | Presenter | Richard Dearbon | 1 | 2 |
| Ryan Booth | Zarin's Jaffa | King | 1 | 2 |
| Haley Beauchamp | Sylvana | Dr. Tanya Landem | 1 | 1 |
| Jan Bos | Ambassador Sevaarin | Dr. Hadley | 1 | 1 |
| Jason McKinnon | Walker | Driver | 1 | 1 |
| Michael Ironside | Seevis | Lewis Snart | 1 | 1 |
| Benita Ha | Brooks | Paramedic #1 | 2 | 1 |
| Eli Gabay | Jumar | Fire Chief | 2 | 1 |
| Fred Henderson | Major Robert Thornbird | Coroner | 1 | 2 |
| Chris Shields | Capt. Mike Shefield | John Bolen | 1 | 1 |
| Paul Herbert | Dancing Classmate | Director Hackshaw | 1 | 2 |
| Paul Moniz de Sa | Fannis | Jeweler | 2 | 1 |
| Robert Mann | Dr. Bennett | Basil Nurblin | 1 | 1 |
| Sasha Piltsin | Driver, Eurondan in stasis | Bodyguard | 2 | 1 |
| Tommy Europe | Jaffa | Security Guard | 1 | 1 |
| Joey Aresco | Mr. Parker, Slaviash | Frank Santini | 2 | 1 |
| Darryl Quon | Jaffa | Skullstar | 1 | 1 |
| Brad Dryborough | Outta Control Driver | David Rutenberg | 1 | 1 |
| Elizabeth Weinstein | Emta | Financial Advisor | 1 | 1 |
| Patrick Keating | Councilman | Older Man | 1 | 1 |
| Peter New | Farmer | Wdgick | 1 | 1 |
| Charles Raahul Singh | Khordib | Visitor #1 | 1 | 1 |
| Dee Jay Jackson | Cab Driver | Laundry Guy | 1 | 1 |
| Marshall Virtue | Bedrosian Soldier | TSA Agent | 1 | 1 |
| David Allan Pearson | Quinta | Captain | 1 | 1 |
| Ryan Elm | Gary | Plumber | 1 | 1 |
| Demord Dann | Jaffa | Security Guard | 1 | 1 |
Cast data from TVmaze, licensed CC BY-SA 4.0.