All 73 actors in both Home Improvement and Seinfeld
73 actors have appeared in both Home Improvement and Seinfeld, across 383 episodes. The most-credited is Patrick Cronin, Sparky in Home Improvement and Farkus in Seinfeld.
| Actor | In Home Improvement | In Seinfeld | Eps | Eps |
|---|---|---|---|---|
| Patrick Cronin | Sparky | Farkus | 6 | 2 |
| Al Fann | Felix Myman | Judge | 6 | 1 |
| Tom La Grua | Eddie, Eddie McCormick | Kernis | 5 | 1 |
| Jarrad Paul | Jason | Darin | 4 | 1 |
| Vicki Lewis | Maureen Binford | Ada | 3 | 2 |
| Gretchen German | June Palmer | Donna | 3 | 1 |
| Joe Urla | Chris Harper | Dugan | 1 | 6 |
| Janeane Garofalo | Tina | Jeannie Steinman | 1 | 2 |
| Larry Hankin | Larry | Tom Pepper (Kramer) | 1 | 2 |
| Montrose Hagins | Alice | Old Woman, Woman in Theatre | 1 | 2 |
| O'Neal Compton | Phil | Earl | 1 | 2 |
| Vaughn Armstrong | Lt. Colonel Hall | Lt. Coleman | 1 | 2 |
| Adam Wylie | Jimmy Wagner | The Kid | 1 | 1 |
| Cleto Augusto | Marty Taylor | Scott | 1 | 1 |
| Harry S. Murphy | Dr. Lee | Office Manager | 1 | 1 |
| James Hong | Dave | Bruce | 1 | 1 |
| John Cothran, Jr. | Handyman | Man | 1 | 1 |
| Kari Coleman | Kathy | Allison | 1 | 3 |
| Marcelo Tubert | Dr. Knell | Father | 1 | 1 |
| Rosalind Allen | Kelly Barnes | Diane | 1 | 1 |
| Virginia Watson | Policewoman | Nun | 1 | 1 |
| Jay Leno | Jay, Jay Leno | Jay Leno | 2 | 1 |
| Joel Polis | Wes Davidson | Reilly | 2 | 1 |
| Mark L. Taylor | Bert Russell | Michael | 2 | 1 |
| Miguel Sandoval | Mr. Jennings | Marcelino | 1 | 2 |
| Maryedith Burrell | Tracy | Maryedith, Mother | 2 | 2 |
| Ann Morgan Guilbert | Wilson's Mother | Evelyn | 1 | 3 |
| Carol Mansell | Rose | Mother | 1 | 2 |
| David Brisbin | Principal Piersall | Client | 1 | 1 |
| Greg Collins | Roy | Policeman | 1 | 1 |
| Michael Luckerman | Salesclerk | Man | 1 | 1 |
| Michael Milhoan | Officer Guidry | Security Guard | 1 | 1 |
| Paige Tamada | Tiffany | Clara | 1 | 1 |
| Rif Hutton | Man at Arena | Salesman | 1 | 1 |
| Rondi Reed | Dr. Miller | Mary | 1 | 1 |
| Stephen Root | Exterminator | Mr. Lager | 1 | 1 |
| Will Nye | Angus McLain | Airport Security Guy | 1 | 1 |
| Sonya Eddy | Gayle | Rebecca DeMornay | 1 | 2 |
| Don Perry | Old Man #2 | Bill | 1 | 1 |
| Eric Christmas | Sir Larry Houdini | Haarwood | 1 | 1 |
| Gedde Watanabe | Nobu Nakamura | Mr. Oh | 1 | 1 |
| Jeanette Miller | Volunteer | Old Woman | 1 | 1 |
| Jessica Tuck | Leslie | Bonnie | 1 | 1 |
| John Putch | Dan | Roy | 1 | 1 |
| Kathryn Joosten | Thelma McCready | Betsy | 1 | 1 |
| Raye Birk | Fred | Mr. Pless | 1 | 1 |
| Sam Whipple | Usher | Phone Guy #1 | 1 | 1 |
| Shashawnee Hall | Audience Member #1 | Usher | 1 | 1 |
| Sherman Howard | Howard | Roy | 1 | 1 |
| Tom Verica | Charlie | Doctor | 1 | 1 |
| Wesley Thompson | Phone Man | Poker Player #2 | 1 | 1 |
| Stan Sellers | Robbie | Cop #2, McAdam | 1 | 2 |
| Bari K. Willerford | Man #1 | Ron | 1 | 1 |
| Connie Sawyer | Old Lady | Old Woman | 1 | 1 |
| David Graf | Chuck Norwood | Cop #2 | 1 | 1 |
| Drake Bell | Little Pete | Kenny | 1 | 1 |
| Fred Sanders | Steve Smith | John | 1 | 1 |
| Perry Anzilotti | Mike | Usher | 1 | 1 |
| Ralph Manza | Sam | Gepetto | 1 | 1 |
| Rick Fitts | Dave | Dentist | 1 | 1 |
| Clive Rosengren | Policeman | Mr. Clotworthy, Waiter | 1 | 2 |
| Bill Saluga | Man #1 | Usher | 1 | 1 |
| Christopher Michael Moore | Jimmy Gruber | Studio Guard | 1 | 1 |
| Stuart Quan | Robert Cho | Sensei | 1 | 1 |
| Tracy Letts | Henry | Counterguy | 1 | 1 |
| Walter Addison | Professor Garver | Man | 1 | 1 |
| Wesley Leong | Japanese Man #3 | Clerk | 1 | 1 |
| Brent Hinkley | Carl | Lou | 1 | 1 |
| Dom Irrera | Ed | Ronnie | 1 | 1 |
| Layne Beamer | Ted | Father | 1 | 1 |
| Lyn Alicia Henderson | Mrs. Gamble | Clerk | 1 | 1 |
| Tom Gallop | Bob | Alan | 1 | 1 |
| Pat Asanti | Mr. Cobb | Electrician | 1 | 1 |
Cast data from TVmaze, licensed CC BY-SA 4.0.