All 116 actors in both Columbo and The Love Boat
116 actors have appeared in both Columbo and The Love Boat, across 314 episodes. The most-credited is Jessica Walter, Margaret Nicholson in Columbo and Holly Hartman, Marcia Farnsworth, Jocelyn Hyatt Matthews in The Love Boat.
| Actor | In Columbo | In The Love Boat | Eps | Eps |
|---|---|---|---|---|
| Jessica Walter | Margaret Nicholson | Holly Hartman, Marcia Farnsworth, Jocelyn Hyatt Matthews | 1 | 8 |
| Juliet Mills | Eileen Hacker | Barbara Danver, Betty Robinson, Blair Chapman | 1 | 8 |
| Rue McClanahan | Verity Chandler | Mary Hubble, April Dunlevy, Doris Simpson | 1 | 6 |
| Anthony Andrews | Elliott Blake | Tony Selkirk | 1 | 4 |
| Leslie Nielsen | A.J. Henderson, Peter Hamilton | Dan Michaels, Hank Hardaway, Russ Blanchard | 2 | 3 |
| Robert Culp | Brimmer, Dr. Bart Kepple, Jordan Rowe | Major Ross Latham | 4 | 1 |
| William Windom | Burt Gordon, Everett Logan | Bill Kelly, Harold Wallingford | 2 | 3 |
| Forrest Tucker | Bo Williamson | Sam Zacchary, Tex, Tom Preston | 1 | 3 |
| Mariette Hartley | Eileen McRae, Veronica | Martha Chambers | 2 | 2 |
| Nancy Walker | Nancy Walker | Hetty Waterhouse, Judge Joanne Akinson, Twinkie Bascons | 1 | 3 |
| Pat Crowley | Lenore Kennicutt | Linda Bradley, Noreen Badger | 1 | 3 |
| Ray Milland | Arthur Kennicutt, Jarvis Goodland | Peter Bradbury | 2 | 2 |
| Robert Vaughn | Charles Clay, Hayden Danziger | Charlie Paris | 2 | 2 |
| Vera Miles | Viveca Scott | Arlene Kemper, Bess Hensinger, Eve Springer | 1 | 3 |
| Andrew Stevens | Wayne Jennings | Larry Alexander | 1 | 2 |
| Celeste Holm | Phyllis Lytton Brandt | Estelle Castlewood, Florence Flanders | 1 | 2 |
| Dabney Coleman | Detective Murray, Hugh Creighton | Van Milner | 2 | 1 |
| Ed Begley Jr. | Irving Krutch, Officer Stein | Allan Bundy | 2 | 1 |
| Harold Gould | Agent Carlson | Vernon Crowler / Captain Merrill Stubing | 1 | 2 |
| James Gregory | Coach Rizzo, David L. Buckner | Milton Benson | 2 | 1 |
| Samantha Eggar | Vivian Brandt | Mary-Louise Murphy, Meg Chase | 1 | 2 |
| Vic Tayback | Sam Franklin | 'Dutch' Boden, Harry Stewart, Jack Hamilton | 1 | 5 |
| Charles Frank | Edmund Galvin | Andy Singer, David Swick, Jim Wright, Seniors' Chaperone | 1 | 4 |
| Richard Kline | Louis 'Lou' Cates | Arthur Smalley, Danny Lucas, Eddie Riggins | 1 | 4 |
| Bradford Dillman | Tony Goodland | Mr. Harrison | 1 | 1 |
| Diane Baker | Joanna Clay | Ruth Newman | 1 | 1 |
| Gene Barry | Dr. Ray Flemming | Alfred Newberry, Ted Anderson, Wade Hubbard | 1 | 3 |
| Jamie Lee Curtis | Waitress | Linda | 1 | 1 |
| José Ferrer | Dr. Marshall Cahill | Deke Donner, Simon Beck | 1 | 3 |
| Julie Newmar | Lisa Chambers | Marla Samms | 1 | 1 |
| Martha Scott | Margaret Meadis | Janet Latham | 1 | 1 |
| Patrick Macnee | Capt. Gibbon | David Blake | 1 | 1 |
| Paul Burke | Horace Sherwin | Brian Sherwood, Ned Beacham, Walter Baresh | 1 | 3 |
| Pedro Armendariz, Jr. | Commandante Sanchez | Ricardo | 1 | 1 |
| Richard Anderson | Bryce Chadwick | Dr. Art Akers | 1 | 1 |
| Roddy McDowall | Roger Stanford | Fred Beery | 1 | 1 |
| Sorrell Booke | Bertie Hastings, J.J. Stringer | Lucius Kergo | 2 | 2 |
| Vincent Price | David Lang | Wendell Mordan - 'The Amazing Alonzo' | 1 | 1 |
| Warren Berlinger | Det. Jack Stroller | Francis Dunkmueller | 1 | 1 |
| Will Geer | Dr. Edmund Hiedeman | Franklyn Bootherstone | 1 | 1 |
| Anne Francis | Sharon Martin, R.N., Valerie Bishop | Mrs. Kelsey | 2 | 1 |
| Bill Macy | Ruddick | Jack Davidson, Myles | 1 | 2 |
| Brenda Vaccaro | Jess McCurdy | Eleanor Savage | 1 | 2 |
| Dawn Wells | Female Guest | Valerie Madden | 1 | 2 |
| Eddie Albert | Major General Martin J. Hollister | Dean Burton Lockwood | 1 | 2 |
| Janet Leigh | Grace Wheeler Willis | Gail, Joan Philipps | 1 | 2 |
| Marcia Wallace | Woman | Ms. O' Roarke | 2 | 1 |
| Mel Ferrer | Jerry Parks | Jack Powers | 1 | 2 |
| Don Ameche | Frank Simpson | Henry Dobson, Hollis Witkin, Stewart Coolidge | 1 | 3 |
| Larry Storch | Mr. Weekly | Elwood Riggs, Tony Santini | 1 | 3 |
| Pat Harrington Jr. | Buddy Castle | Dr. Milton Foster, Hank Vosnick, Prince Hassan | 1 | 4 |
| Anne Baxter | Nora Chandler | Helen Williams, Priscilla Crawford | 1 | 4 |
| Carlene Watkins | Amy | Linda Trent, Rebecca Davis, Susan Russell | 1 | 3 |
| Chuck McCann | Roger White | Al, Floyd Fanning | 1 | 2 |
| David White | Phil Corrigan | Greg Beatty | 1 | 1 |
| Dick Sargent | Dick Sargent | Father Mike | 1 | 1 |
| Jack Riley | Director | Miles Metcalf | 1 | 1 |
| Jeanette Nolan | Kate O'Connell, Mrs. Peck | Gloria Hancock | 2 | 1 |
| Kevin McCarthy | Dr. Frank Simmons | Barry Cooper | 1 | 1 |
| Lloyd Bochner | Mazoor Berozski | Larry Ellis | 1 | 1 |
| Nita Talbot | Marcia Dalton | Mary | 1 | 1 |
| Pat Morita | The House Boy | Mr. Yamashiro, Vincent | 1 | 2 |
| Ross Martin | Dale Kingston | Tom Thorton | 1 | 1 |
| Sam Jaffe | Dr. Henry Willis | Professor Roscoe Weber | 1 | 1 |
| William Christopher | Male Scientist | Carl Mitchell, Elliot Weatherly, Hal Wiliston | 1 | 3 |
| Arlene Martel | Gloria West, Salesgirl, Tanya | Lisa Michelle | 3 | 1 |
| Jared Martin | Harry Alexander | Jim Tipton, Paul Reese | 1 | 3 |
| Barbara Rhoades | Hostess, Joyce | Didi Donnelly | 2 | 1 |
| Bart Braverman | 2nd Picketer | Roger Markham | 1 | 2 |
| Betsy Palmer | Martha Lamarr | Millicent Holton | 1 | 1 |
| Brett Halsey | Ken Archer | Clark Tyler | 1 | 1 |
| Clive Revill | Joe Devlin | Slade Collins | 1 | 1 |
| Floyd Levine | Lieutenant Schultz | Pete | 1 | 1 |
| Frank Aletter | Dr. Ernie Garrison | Arnold James | 1 | 1 |
| Janis Paige | Goldie Williamson | Phyllis Morrison | 1 | 1 |
| Lew Ayres | Dr. Howard Nicholson | Carl Hooper | 1 | 1 |
| Bernard Fox | Det. Chief Supt. William Durk, Purser Watkins | Henry Whitewood | 2 | 1 |
| Valerie Harper | Eve Babcock | Laurel Peters | 1 | 2 |
| Don Gordon | Alvin Deschler | Frank Fennimore | 1 | 1 |
| Frank Converse | Mr. Fallon | Bill Thompson | 1 | 1 |
| James A. Watson, Jr. | Sgt. McCauley | Robert Marlowe, James Sweetland | 1 | 3 |
| Laurie Walters | Helen Ashcroft | Laura Rogers, Roberta Potter | 1 | 2 |
| Maurice Evans | Raymond | Hollister Dale | 1 | 1 |
| Richard Basehart | Nicholas Frame | Stan Ellis | 1 | 1 |
| Ruth Gordon | Abigail Mitchell | Mrs. Warner | 1 | 1 |
| Susan Howard | Shirley Wagner | Cynthia Bowden | 1 | 1 |
| Penny Fuller | Mrs. Finch | Catherine Gerra, Gina Crawford | 1 | 2 |
| Antony Ponzini | Gregory Lopiccolo | Al Dixon | 1 | 1 |
| Bettye Ackerman | Miss Sherman | Professor Helen Burton | 1 | 1 |
| Don Bovingloh | Customer | Howard, Pianist, Waiter | 1 | 3 |
| Edward Winter | Charlton "Charlie" Chambers | Rod Simpson | 1 | 1 |
| Gary Conway | Enrico Guiseppe Carsini | Donald | 1 | 1 |
| Harvey Jason | The Director | Howard Wilson | 1 | 1 |
| Mary Wickes | Landlady | Mrs. Randolph | 1 | 1 |
| Peter Haskell | Budd Clarke | Wendell Carson | 1 | 1 |
| Trish Van Devere | Kay Freestone | Amanda Dailey | 1 | 1 |
| Trisha Noble | Marcy | Gertrude Turner | 1 | 1 |
| Byron Morrow | Amos Lawrence | Massey's Attorney, Mr. Burrows | 1 | 2 |
| Haven Earle Haley | 2nd Reporter | Mr. Burns | 1 | 1 |
| Joshua Bryant | Dr. MacMurray, Wayne Taylor | Jack Plymouth | 2 | 1 |
| Marla Adams | Sheila Byrnes | Arlene Simpson, Glenda Fairbanks | 1 | 2 |
| Michael Gregory | Mr. Hacker | Ken Breyer | 1 | 1 |
| Teresa Ganzel | Dede Perkins | Donna Braddock | 1 | 1 |
| Victor Millan | Detective Flores | Father Ramos | 1 | 1 |
| Robert Walden | Billy Fine | Jeff Thatcher | 1 | 1 |
| Ernesto Macias | Fred | Max Esteban, Senor Martinez | 1 | 2 |
| Dorrie Thomson | Miss Eisenback | Dorrie | 1 | 1 |
| Franklin Cover | Harry Jenkins | Marvin Brown | 1 | 1 |
| Fred Holliday | Crawford | Brendon Riley | 1 | 1 |
| Hank Brandt | Attorney | Paul Healy | 1 | 1 |
| John Martin | Sam Marlowe | TV Reporter | 1 | 1 |
| Danny Dayton | Director | Walt | 1 | 1 |
| Joe Renteria | Box Attendant Jimmy | Ramon | 1 | 1 |
| Larry McCormick | News Anchor | Newsman | 1 | 1 |
| H.B. Haggerty | Masseur | Abdulla | 1 | 1 |
| Danny Goldman | Press Photographer | George Thurlow | 1 | 1 |
Cast data from TVmaze, licensed CC BY-SA 4.0.