All 110 actors in both Castle and Modern Family
110 actors have appeared in both Castle and Modern Family, across 423 episodes. The most-credited is Fred Willard, Hank McPhee in Castle and Frank Dunphy in Modern Family.
| Actor | In Castle | In Modern Family | Eps | Eps |
|---|---|---|---|---|
| Fred Willard | Hank McPhee | Frank Dunphy | 1 | 14 |
| Kevin Daniels | Reggie Blake | Longinus | 1 | 12 |
| Kasey Mahaffy | Lance Newman | Dom | 1 | 10 |
| Sunkrish Bala | Vikram Singh | Daryl | 9 | 1 |
| Andrew Borba | Mr. Mudge | Principal Balaban | 1 | 3 |
| Jon Polito | Harold Leone | Earl Chambers | 1 | 3 |
| Matt Roth | Philip Dagmar | Skip Woosnum | 1 | 2 |
| Suzy Nakamura | Jennifer Wong | Dr. Miura | 1 | 2 |
| Drew Powell | Sam Carson | Terry | 1 | 1 |
| Eric Lange | Simon Warburg | Coach Stupak | 1 | 1 |
| Fiona Gubelmann | Linda Weinberg | Lisa | 1 | 1 |
| Jason Antoon | Steve Warner | Clark | 1 | 1 |
| Jonathan Banks | Bruce Kirby | Donnie Pritchett | 1 | 1 |
| Jonathan Runyon | DHS Technician | Keith | 1 | 1 |
| Lex Medlin | Seth Parrino | Jeff | 1 | 1 |
| Philip Anthony-Rodriguez | Michael Grant | Tim | 1 | 3 |
| Rob Brownstein | Captain Ziering | Judge Lewis | 1 | 1 |
| Robert Costanzo | Sal Tenor | Earl Chambers | 1 | 1 |
| Ron Roggé | Wolkowski | Craigslist Guy | 1 | 1 |
| Tom Wright | Fats Shepherd | Pete | 1 | 1 |
| June Squibb | Jamie Isaacson | Auntie Alice | 1 | 2 |
| Adam Rose | Mike Boyer | Adam | 1 | 1 |
| Bill Parks | Tommy | Park Ranger | 1 | 1 |
| Charles Carpenter | Reporter | Umpire | 1 | 1 |
| Charles Shaughnessy | Nigel Wyndham | Dr. Stieglitz | 1 | 1 |
| Chris Butler | Bob Foster | Chip | 1 | 1 |
| Christopher B. Duncan | Marcus Weller | Security Guard | 1 | 1 |
| Darren Dupree Washington | Security Aide | Director | 1 | 1 |
| Deji LaRay | Herman Poquille | Trapper Homebuyer | 1 | 1 |
| Eddie McClintock | Rogan O'Leary | Brandon | 1 | 1 |
| Elena Campbell-Martinez | Mama | Rita | 1 | 1 |
| Gilles Marini | Tobias Strange | Julian | 1 | 1 |
| Grace Rowe | Reporter #1 | Mrs. Bay | 1 | 2 |
| India de Beaufort | Taylor McKinley | Dr. Singh | 1 | 1 |
| Jack Laufer | Mr. Davenport | Frank | 1 | 1 |
| Joe Nieves | Boyd Gamble | Francisco | 1 | 1 |
| Krista Allen | Naomi Duvray | Flight Attendant | 1 | 1 |
| Larry Sullivan | Samuel Lynchberg | Teddy | 1 | 1 |
| Malcolm Foster Smith | Officer Haskell | Delivery Guy | 1 | 1 |
| Mark Adair-Rios | Mario "Trucho" Mendoza | Don | 1 | 1 |
| Maxwell Caulfield | Sir Ian Rasher | Professor Cooke | 1 | 1 |
| Melinda Page Hamilton | Diana Harris | Sandy | 1 | 1 |
| Rebecca Wisocky | Dr. Elena Sarkov | Mrs. Graham | 1 | 1 |
| Rob Nagle | Kirby Smith | Bill | 1 | 1 |
| Sam Daly | Jack Hastings | Vader's Dad | 1 | 1 |
| Stephnie Weir | Mia Laszlo | Stephanie Hoffman | 1 | 1 |
| Edith Fields | Sheri Nelson | Elderly Woman | 1 | 2 |
| Alex Fernandez | Capt. Marcus Donovan | Park Worker | 1 | 1 |
| Amir Talai | Sam Spear | Dale | 1 | 1 |
| Andrew Leeds | Adam Murphy | Rich | 1 | 1 |
| Blake Gibbons | Billy Grimm | Construction Worker | 1 | 1 |
| David Hoffman | Ned Werner | Richard | 1 | 1 |
| Eric Tiede | Mike Hoover | Desmond | 1 | 1 |
| Hector Osorio | Colin | Security Guard | 1 | 1 |
| Jonathan Emerson | Father Joe McMurtry | Stan Larkin | 1 | 1 |
| Josh Latzer | Gary Duffin | Trucker | 1 | 1 |
| Michelle Anne Johnson | Officer Greta Bailey | Adoption Official | 1 | 1 |
| Stephanie Faracy | Patty Schultz | Dottie | 1 | 1 |
| Claudia Choi | CSU Photo Technician, Video Technician | Holly's friend | 2 | 1 |
| Ben Seaward | Jeremy | Neil | 1 | 1 |
| Darin Toonder | Frankie | Dad Beats Guitarist | 1 | 1 |
| Eileen Fogarty | Élodie | Susie | 1 | 1 |
| Heather Mazur | Gwen Kelly | Anne Gibbs | 1 | 1 |
| Jeryl Prescott | Nurse | Shopper | 1 | 1 |
| Joe Coots | Morgan | Coach Walls | 1 | 1 |
| Matthew Alan | Jason Bagwell | Baby Class Student | 1 | 1 |
| Millicent Martin | Oona Marconi | Charlotte | 1 | 1 |
| Mo Mandel | Max Landon | Grieving Dog Owner | 1 | 1 |
| Ray Laska | Dan Tonelli | Burt | 1 | 1 |
| Adam Kulbersh | Brian Shay | Mike Hoffman | 1 | 1 |
| Allison Dunbar | Sandra Meyers | Abigail | 1 | 1 |
| Angela Oh | Anne Greene | Realtor #1 | 1 | 1 |
| Bo Foxworth | Leonard Maloney | Sam Burnbull | 1 | 1 |
| Bruno Oliver | Tracy's Boss | Tom Mickleson | 1 | 1 |
| Efrain Figueroa | Ray Salazar | Father Marquez | 1 | 1 |
| Gerald Downey | Lloyd Kurtzman | Jim | 1 | 1 |
| Janet Song | Nurse | Mrs. Tran | 1 | 1 |
| Jeremy Glazer | Nick Keller | Kieran | 1 | 1 |
| John Kapelos | Joe Pulgatti | Stavros | 1 | 1 |
| Judy Kain | Sara | Doris | 1 | 1 |
| Theo Wilson | News Anchor | Security Guard | 1 | 1 |
| Cynthia Frost | Tova | Jeremy's Grandma | 1 | 1 |
| David Dean Bottrell | Byron H. Singer | Mr. Wilkerson | 1 | 1 |
| Joy Regullano | Anna | Sujata | 1 | 1 |
| Michael Benyaer | Oscar | Jerry | 1 | 1 |
| Mike Faiola | Paul Morton | James | 1 | 1 |
| Nika King | Angel Santana | Shopper | 1 | 1 |
| Rodney J. Hobbs | Worker | Trapeze Guy | 1 | 1 |
| Ruth Williamson | Geraldine Powers | Marilyn | 1 | 1 |
| Catherine Christensen | Agent Adler | Joan | 1 | 1 |
| Elimu Nelson | Frank Patchett | Officer | 1 | 1 |
| Hilary Ward | Bella | Pregnant Homebuyer | 1 | 1 |
| Jess Allen | Garrett Ward | Claire's Friend | 1 | 1 |
| John Gloria | Bartender | John | 1 | 1 |
| Kenzo Lee | Mike Lin | Delivery Guy | 1 | 1 |
| Fred Cross | Dr. Haver | Ticket Taker | 1 | 1 |
| Jim Piddock | Lord Henry | Malcolm Fennerman | 1 | 1 |
| Jon Curry | Stan Kopek | Pool Guest | 1 | 1 |
| Morgan Peter Brown | Ted Archer | Craig | 1 | 1 |
| Matt Riedy | Attorney | Howard | 1 | 2 |
| Bernard K. Addison | Attorney | Marvin | 1 | 1 |
| Chris Erric Maddox | Kris | Ethan | 1 | 1 |
| Kelly Hawthorne | Ella | Denise | 1 | 1 |
| Christian Gehring | Conrad Hayward | Jace | 1 | 1 |
| Jeffrey Nicholas-Brown | Freddie Baker | Tim | 1 | 1 |
| Kai Scott | Jack | Trick-or-Treater | 1 | 1 |
| Lucia Sullivan | Melinda Farraday | Home Buyer #1 | 1 | 1 |
| Amy Tolsky | Sue Williams | Guidance Counselor | 1 | 1 |
| Christopher Wolfe | Officer | Luis | 1 | 1 |
| Artie O'Daly | Building Manager | Joshua | 1 | 1 |
Cast data from TVmaze, licensed CC BY-SA 4.0.