Actors in both Castle and How I Met Your Mother
105 actors have appeared in both Castle and How I Met Your Mother, across 381 episodes. The most-credited is Joe Nieves, Boyd Gamble in Castle and Carl in How I Met Your Mother.
| Actor | In Castle | In How I Met Your Mother | Eps | Eps |
|---|---|---|---|---|
| Joe Nieves | Boyd Gamble | Carl | 1 | 21 |
| Charlene Amoia | Ana Marie | Wendy | 1 | 17 |
| Michael Trucco | Detective Tom Demming | Nick Petteruti, Crush | 4 | 7 |
| Ray Wise | Bobby Fox | Robin Sr | 1 | 5 |
| K Callan | Delores Marsh | Grandma Lois | 1 | 3 |
| Laura Prepon | Natalie Rhodes | Karen | 1 | 3 |
| Valerie Azlynn | Officer Ann Hastings | Dawn | 3 | 1 |
| Dan Castellaneta | Judge Markway | Milt | 2 | 1 |
| Darby Stanchfield | Meredith | Marissa Heller | 2 | 1 |
| Abigail Spencer | Sarah Reed / Lauren Branston | BlahBlah | 1 | 1 |
| Brad Grunberg | Gary | Bruno | 1 | 1 |
| Bruce Gray | Charles Carson | Yuthers, Senior Partner | 1 | 3 |
| Erin Cahill | Cecily Burkett | Heather | 1 | 1 |
| Kathleen Rose Perkins | Elise Finnegan | Mary Beth | 1 | 1 |
| Anne Dudek | Emma Carnes | Natalie | 1 | 2 |
| Amy Gumenick | Danielle | Amanda | 1 | 1 |
| Caroline Lagerfelt | Angelica Henley | Bridal Shop Lady | 1 | 1 |
| Christine Woods | Leann West | Waitress | 1 | 1 |
| India de Beaufort | Taylor McKinley | Sophia | 1 | 1 |
| Jane Seymour | Gloria Chambers | Professor Lewis | 1 | 1 |
Cast data from TVmaze, licensed CC BY-SA 4.0.