Actors in both Grey's Anatomy and How I Met Your Mother
120 actors have appeared in both Grey's Anatomy and How I Met Your Mother, across 675 episodes. The most-credited is Joe Nieves, Michael Baker in Grey's Anatomy and Carl in How I Met Your Mother.
| Actor | In Grey's Anatomy | In How I Met Your Mother | Eps | Eps |
|---|---|---|---|---|
| Joe Nieves | Michael Baker | Carl | 1 | 21 |
| Charlene Amoia | Dr. Kate Lachman | Wendy | 1 | 17 |
| Bill Fagerbakke | Roy Mackinaw | Marvin Eriksen Sr. | 1 | 12 |
| Robert Belushi | TV Announcer | Linus | 1 | 12 |
| Floriana Lima | Nora Young | Haley | 9 | 1 |
| Sarah Chalke | Casey Hedges | Stella Zinman | 1 | 8 |
| Abigail Spencer | Dr. Megan Hunt | BlahBlah | 15 | 1 |
| Frances Conroy | Eleanor | Loretta | 1 | 6 |
| Ben Vereen | Archie | Sam Gibbs | 1 | 5 |
| Peter Gallagher | Dr. David Hamilton | Professor Vinick | 9 | 1 |
| Vicki Lewis | Harriet | Dr. Sonya | 1 | 4 |
| Nazanin Boniadi | Amrita | Nora | 1 | 8 |
| Edward Herrmann | Intern Norman | Reverend Lowell | 3 | 1 |
| Kathleen M. Darcy | Anesthesiologist | Wedding Guest #2 | 10 | 1 |
| Anne Dudek | Elise Castor | Natalie | 1 | 2 |
| Mandy Moore | Mary Portman | Amy | 4 | 1 |
| Erin Cahill | Meg Shelley | Heather | 1 | 1 |
| K Callan | Janis | Grandma Lois | 1 | 3 |
| Sachin Bhatt | Vivek Delgadillo | Man #1 | 1 | 1 |
| Deanna Russo | Nola Marques | Brooke Bartholomay | 2 | 1 |
Cast data from TVmaze, licensed CC BY-SA 4.0.