Actors in both 24 and Castle
171 actors have appeared in both 24 and Castle, across 377 episodes. The most-credited is Glenn Morshower, Agent Aaron Pierce in 24 and Defense Secretary Michael Reed in Castle.
| Actor | In 24 | In Castle | Eps | Eps |
|---|---|---|---|---|
| Glenn Morshower | Agent Aaron Pierce | Defense Secretary Michael Reed | 49 | 1 |
| Carlos Bernard | Tony Almeida | Jared Stack | 41 | 1 |
| Reiko Aylesworth | Michelle Dessler | Mia Lopez | 38 | 1 |
| Geoff Pierson | John Keeler | Mr. Smith | 18 | 6 |
| Nazneen Contractor | Kayla Hassan | Layla Nazif | 21 | 1 |
| D.B. Woodside | Wayne Palmer | Lance Carlberg | 31 | 1 |
| Adoni Maropis | Abu Fayed | Henry Allen Boothe | 14 | 1 |
| Ross McCall | Ron Clark | Seth Carver | 9 | 1 |
| Scott Paulin | Brian Jacobs | Jim Beckett | 2 | 7 |
| Gina Torres | Julia Milliken | Penelope Foster | 7 | 1 |
| Julian Sands | Vladimir Bierko | Teddy Farrow | 11 | 1 |
| Richard Burgi | Alan York | Charlie Turner | 11 | 1 |
| James Morrison | Bill Buchanan | Commissioner Malone | 10 | 1 |
| T.J. Ramini | Tarin Faroush | Prince Khalid Hasheim | 10 | 1 |
| John Allen Nelson | Walt Cummings | Walter Dennis | 10 | 1 |
| Jamie McShane | Gerry Whitehorn | Tony "The Butcher" Valtini | 6 | 1 |
| Navi Rawat | Melanie | Rachel Walters | 6 | 1 |
| C. Thomas Howell | Dr. Barry Landes | John Campbell | 2 | 1 |
| Carlo Rota | Morris O'Brian | Bahir Harun | 5 | 1 |
| Currie Graham | Ted Cofell | Stanford Raynes | 2 | 1 |
Cast data from TVmaze, licensed CC BY-SA 4.0.