All 53 actors in both Hart to Hart and Taxi
53 actors have appeared in both Hart to Hart and Taxi, across 224 episodes. The most-credited is T.J. Castronova, Beal in Hart to Hart and Tommy Jeffries (Waiter/Bartender) in Taxi.
| Actor | In Hart to Hart | In Taxi | Eps | Eps |
|---|---|---|---|---|
| T.J. Castronova | Beal | Tommy Jeffries (Waiter/Bartender) | 1 | 14 |
| Gene LeBell | Heavy #2 | The Referee | 1 | 4 |
| Vincent Schiavelli | The Beret | Reverend Gorky | 1 | 3 |
| Anthony Charnota | Deliveryman, Jack | The Stickman | 2 | 1 |
| John Considine | Buck Kendall, Eliot Knox | Michael Edwards | 2 | 1 |
| Michael Alldredge | Lt. Harry Moss | Todd | 2 | 1 |
| Walter Olkewicz | Longshoreman #2 | Tom Caldwell | 1 | 2 |
| William Bogert | Fox, Wendell Kanter | James Broderick | 2 | 1 |
| Amanda McBroom | Blair Craddock | Olivia | 1 | 1 |
| Bubba Smith | Jimmy Joe Newton | Lucius Franklin | 1 | 1 |
| David Paymer | Orderly | Ned | 1 | 1 |
| Dee Wallace | Connie | Joyce Rogers | 1 | 1 |
| Dolph Sweet | Ed Perkis | Mr. Caruthers | 1 | 1 |
| Howard Witt | Lieutenant Feldman | The Immigration Officer | 1 | 1 |
| J.P. Bumstead | Guard | Guy - 1 | 1 | 1 |
| James Hong | Holy Man | Wealthy Passenger | 1 | 1 |
| Joanna Cassidy | Belle | Beverly | 1 | 1 |
| John Lehne | Beaumont | Hamlet's Owner | 1 | 1 |
| Judith-Marie Bergan | Michelle "Mike" Saunders | Shawn | 1 | 1 |
| Louis Guss | Chauffeur | Maxie | 1 | 1 |
| Max Wright | Dr. Robert Chase | Mr. Ambrose | 1 | 1 |
| Michael Horton | Young Man | Steve Jensen | 1 | 1 |
| Nicholas Hormann | Vince | Businessman #1 | 1 | 1 |
| Richard Foronjy | Monihan | Nick | 1 | 1 |
| Tony La Torre | Boy | Terry | 1 | 1 |
| Wendell Wright | Frank Virella, Surgeon | Sam, The Cop | 2 | 2 |
| Al Ruscio | Mr. Six | Dr. Webster | 1 | 1 |
| Andra Akers | Dana Blake, Louisa Clement | Rita | 2 | 1 |
| George Wendt | Sergeant Tate | The Exterminator | 1 | 1 |
| John Dukakis | Danny Wilson | Goodwin | 1 | 1 |
| Richard Minchenberg | Arnold, Lew Elliott | Dwight | 2 | 1 |
| Robert G. Denison | Jerry Sperling | Earl | 1 | 1 |
| Rusdi Lane | Workman #2 | Rudy, Waiter | 1 | 2 |
| Stephen Elliott | Steven Baldwin | Mr. McKenzie | 1 | 1 |
| Matthew Faison | Butler, Jack, Nolan | Mr. Thompson | 3 | 1 |
| Peter Elbling | Akbar | Mascha | 1 | 2 |
| James MacKrell | Texan | The Passenger | 1 | 1 |
| John Calvin | Sam Henderson | Doug | 1 | 1 |
| Julie Payne | Nurse | Sister Number One | 1 | 1 |
| Mark Harrison | John | Mr. Booth | 1 | 1 |
| Martin Azarow | Mr. Brooklyn | Leon | 1 | 1 |
| Mary Woronov | Clavell | Fran Strickland | 1 | 1 |
| Myron Natwick | Kyle Landon | The Maitre D' | 1 | 1 |
| Nina Van Pallandt | Dr. Phelps | Lindsay | 1 | 1 |
| Woody Eney | Mr. Austin | INS Agent | 1 | 1 |
| Fred Stuthman | Mr. Milton, Simon | Blind Passenger | 2 | 1 |
| Robert Phalen | Benny Petulsky, Bill Westfield | Tom Jeffries | 2 | 1 |
| Bill Wiley | Senator Barton, Senator Eldridge | Mr. Givens | 2 | 1 |
| Karen Anders | Victoria | The Drunk Woman | 1 | 1 |
| Warren Munson | Mr. Wilbur | Customer Number 1 | 1 | 1 |
| Robert Balderson | American Man | Mr. Barrett | 1 | 1 |
| John Dennis | Detective Turner | Maintenance Man | 1 | 1 |
| Nelson Welch | Alfred | Mr. Parker | 1 | 1 |
Cast data from TVmaze, licensed CC BY-SA 4.0.