Actors in both Columbo and M*A*S*H
51 actors have appeared in both Columbo and M*A*S*H, across 320 episodes. The most-credited is William Christopher, Male Scientist in Columbo and Father John Patrick Francis Mulcahy in M*A*S*H.
| Actor | In Columbo | In M*A*S*H | Eps | Eps |
|---|---|---|---|---|
| William Christopher | Male Scientist | Father John Patrick Francis Mulcahy | 1 | 61 |
| John Orchard | Country Constable Charlie | Capt. 'Ugly John' Black, Muldoon | 1 | 10 |
| Bruce Kirby | Sgt. George Kramer, Lab Attendant, Sgt. Phil Brindle | Sergeant Kimble | 9 | 1 |
| Edward Winter | Charlton "Charlie" Chambers | Colonel Samuel Flagg, Capt. Halloran | 1 | 7 |
| Joshua Bryant | Dr. MacMurray, Wayne Taylor | Sergeant Jerry Scully | 2 | 3 |
| Mako | Kanji Ousu | Dr. Lin Tam, Li Han, Lt. Hung Lee Park | 1 | 4 |
| Robert F. Simon | Dr. Westrum | Gen. Maynard M. Mitchell | 1 | 3 |
| Lynette Mettey | Gloria Jr. | Lt. Nancy Griffin, Nurse Able, Nurse Baker | 1 | 6 |
| Ed Begley Jr. | Irving Krutch, Officer Stein | Pvt. Paul Conway | 2 | 1 |
| Leslie Nielsen | A.J. Henderson, Peter Hamilton | Col. Buzz Brighton | 2 | 1 |
| Mariette Hartley | Eileen McRae, Veronica | Dr. Inga Halvorsen | 2 | 1 |
| William Bogert | Randall Thurston | Capt. Maurice Allen, Rodger Prescott | 1 | 2 |
| Buck Young | Guard, Guest at Wake | Dan, M.P., O'Brien | 2 | 3 |
| Denice Kumagai | Martha | Denice Kumagai | 1 | 1 |
| Don Eitner | Pete Cockrum | Captain | 1 | 1 |
| Michael McManus | Tanzer | Sgt. Ames | 1 | 1 |
| Peter Jurasik | Dr. Simon Ward | Capt. Triplett | 1 | 1 |
| Sorrell Booke | Bertie Hastings, J.J. Stringer | Gen. Wilson Spaulding Barker | 2 | 2 |
| William Lucking | Dominic Doyle | Sgt. Marty Urbancic | 1 | 1 |
| Charles Frank | Edmund Galvin | Captain Hathaway, Lieutenant Martinson | 1 | 2 |
Cast data from TVmaze, licensed CC BY-SA 4.0.