Actors in both ER and Mom
94 actors have appeared in both ER and Mom, across 501 episodes. The most-credited is Lyn Alicia Henderson, Paramedic Pamela Olbes in ER and Susan in Mom.
| Actor | In ER | In Mom | Eps | Eps |
|---|---|---|---|---|
| Lyn Alicia Henderson | Paramedic Pamela Olbes | Susan | 149 | 8 |
| Kristen Johnston | Nurse Manager Eve Peyton | Tammy Diffendorf | 6 | 19 |
| Lauri Johnson | Oncology Nurse | Beatrice | 1 | 16 |
| Octavia Spencer | Maria Jones | Regina Thompkins | 1 | 9 |
| Mary Pat Gleason | Anne Parks | Mary | 1 | 8 |
| Sara Rue | Jane | Candace Hayes | 1 | 8 |
| David Krumholtz | Paul Sobriki | Gregory Munschnick | 3 | 5 |
| Mimi Kennedy | Sgt. O'Malley | Marjorie Armstrong | 1 | 7 |
| Joe Manganiello | Officer Litchman | Julian | 4 | 1 |
| Leonard Roberts | Police Officer | Ray | 1 | 4 |
| Bradley Whitford | Sean O'Brien | Mitch | 2 | 2 |
| Wallace Langham | Dr. Melvoin | Jerry | 1 | 3 |
| Diane Delano | Stella Willis, Delores | Leslie | 5 | 1 |
| Michael Angarano | Zack | Cooper | 1 | 2 |
| Nicole J. Butler | Anesthesiologist | Woman #1 | 1 | 2 |
| Amy Pietz | Loren | Rebecca | 1 | 1 |
| Edward Asner | Dr. James McNulty | Jack | 3 | 1 |
| Jack McGee | Rodney McMullen | Frank | 1 | 1 |
| Lauren Bowles | Hannah | Mary | 1 | 1 |
| Richard Schiff | Mr. Bartoli | Robert | 1 | 1 |
Cast data from TVmaze, licensed CC BY-SA 4.0.