Actors in both ER and The West Wing
231 actors have appeared in both ER and The West Wing, across 485 episodes. The most-credited is John Aylward, Dr. Donald Anspaugh in ER and Barry Goodwin in The West Wing.
| Actor | In ER | In The West Wing | Eps | Eps |
|---|---|---|---|---|
| John Aylward | Dr. Donald Anspaugh | Barry Goodwin | 74 | 6 |
| CCH Pounder | Dr. Angela Hicks | Deborah O'Leary | 24 | 1 |
| Janel Moloney | Nancy | Donna Moss | 1 | 22 |
| Marlee Matlin | Sign Language Instructor | Joey Lucas | 1 | 17 |
| Dinah Lenney | Nurse Shirley | Mary Klein | 74 | 1 |
| Karis Campbell | Mrs. Kenig | Ronna | 1 | 21 |
| Mary McCormack | Debbie | Kate Harper | 6 | 4 |
| Cress Williams | Officer Reggie Moore | Lester | 14 | 2 |
| Jorja Fox | Dr. Maggie Doyle | Gina Toscano | 33 | 5 |
| Amy Aquino | Dr. Janet Coburn | Becky Reeseman | 26 | 1 |
| Kathryn Joosten | Lois | Dolores Landingham | 1 | 12 |
| Allison Smith | Denny | Mallory O'Brien | 1 | 11 |
| James Cromwell | Bishop Stewart | President D. Wire Newman | 4 | 1 |
| Michael O'Neill | Col. Ken Kilner | Secret Service Agent Ron Butterfield | 1 | 14 |
| Thomas Kopache | Dr. Stofsky | Bob Slatterly | 1 | 14 |
| Steven Culp | Dave Spencer, Dr. Charles Cameron | Speaker of the House Jeff Haffley | 5 | 9 |
| Reiko Aylesworth | Chaplain Julia Dupree | Janine | 7 | 1 |
| Roma Maffia | Ms. Prager | Officer Rhonda Sachs | 3 | 1 |
| Sam Anderson | Dr. Jack Kayson | John LaSalle | 19 | 1 |
| David Brisbin | Dr. Alexander Babcock | Ken | 19 | 1 |
Cast data from TVmaze, licensed CC BY-SA 4.0.