All 98 actors in both Grey's Anatomy and True Blood
98 actors have appeared in both Grey's Anatomy and True Blood, across 547 episodes. The most-credited is Camilla Luddington, Dr. Jo Wilson in Grey's Anatomy and Claudette in True Blood.
| Actor | In Grey's Anatomy | In True Blood | Eps | Eps |
|---|---|---|---|---|
| Camilla Luddington | Dr. Jo Wilson | Claudette | 22 | 6 |
| Dale Raoul | NICU Nurse | Maxine Fortenberry | 1 | 22 |
| Patricia Bethune | Nurse Ginger | Jane Bodehouse | 6 | 16 |
| John Billingsley | Jacob Nolston | Mike Spencer | 2 | 17 |
| Scott Foley | Henry Burton | Patrick Devins | 15 | 1 |
| Brit Morgan | Erica Marsh | Debbie Pelt | 1 | 14 |
| Adina Porter | Dr. Ramsey | Lettie Mae Thornton | 1 | 13 |
| Tina Majorino | Dr. Heather Brooks | Molly | 22 | 6 |
| Dale Dickey | Emily "Gasoline" Bennett | Martha | 1 | 12 |
| Jessica Tuck | Shannon's Mom | Nan Flanagan | 1 | 9 |
| Robert Baker | Dr. Charles Percy | Mack | 14 | 3 |
| Alfre Woodard | Justine Campbell | Ruby Jean Reynolds | 1 | 5 |
| Kevin Alejandro | Dan Pruitt | Jesus Velasquez | 3 | 3 |
| Amelia Rose Blaire | Hillary List | Willa Burrell | 1 | 9 |
| Lauren Bowles | Alice Franklin | Holly Cleary | 1 | 4 |
| Courtney Ford | Jill Meyer | Portia Bellefleur | 1 | 8 |
| Brian Poth | Keith | Matt | 1 | 3 |
| Kathleen M. Darcy | Anesthesiologist | Carpool Mom Vampire | 10 | 1 |
| John Prosky | Mr. Singleton | David Finch | 1 | 6 |
| Janina Gavankar | Intern Lisa | Luna Garza | 2 | 1 |
| Dustin Ingram | Bruce Fuller | Ronnie | 1 | 4 |
| Valerie Cruz | Zona Cruz | Isabel | 1 | 5 |
| Bess Armstrong | Maureen Lincoln | Nancy Mills | 4 | 1 |
| James Frain | Tom Crawley | Franklin Mott | 1 | 7 |
| Gregg Daniel | Paul James | Reverend Daniels | 1 | 5 |
| Lois Smith | Mrs. Dickinson | Adele Hale Stackhouse | 1 | 2 |
| Shannon Lucio | Amanda | Caroline Compton | 3 | 3 |
| Vedette Lim | Dr. Polly Preston | Naomi | 1 | 5 |
| Yutaka Takeuchi | Kamaji | Yuske | 1 | 5 |
| Annie Fitzgerald | Kathy Nelson | Kirsch | 1 | 6 |
| Brett Rickaby | Mr. Weston | Vince | 1 | 4 |
| Cullen Douglas | Dr. Bob Richardson, Mr. Arnold | Mitch Merlotte | 2 | 1 |
| Grey Damon | Lieutenant Jack Gibson | Kitch Maynard | 3 | 3 |
| Jessica Stroup | Jillian Miller | Sorority Girl | 1 | 1 |
| Michelle Forbes | Vicki Ann Rudin | Maryann Forrester | 1 | 3 |
| Nicholas Gonzalez | Clark West | Jerry | 1 | 1 |
| Rebecca McFarland | Tara Parker | Maggie | 2 | 1 |
| Stephanie Erb | Mrs. Gantry | Luellen | 1 | 5 |
| William Leon | Gary Walton | Teenage Boy Vampire | 1 | 1 |
| Ted Welch | Dante Kane | Joe Bob | 1 | 4 |
| Dean Norris | Vince | Leon | 2 | 1 |
| Jayden Lund | Hulking Patient | Doug | 1 | 3 |
| Louis Ozawa Changchien | Steve Lee | Hiroki | 2 | 2 |
| Gary Kraus | Louis Cardon | Mailman Vampire, Man in Bar | 1 | 2 |
| Judy Prescott | Donna Bevell | Sue Ann Merlotte | 1 | 2 |
| Aaron Perilo | Peter "Gekko" Gekofsky | Blackburn | 1 | 5 |
| Chelsea Ricketts | Jeanie | Lucinda | 1 | 3 |
| James McCauley | Jeremy Weaver | Paul McClatchy | 1 | 2 |
| Lawrence Adimora | Jason Kenton | Jemarcus Kessler | 1 | 2 |
| Stewart Skelton | Dr. Fischer | Minister | 1 | 2 |
| Andrew Thacher | Sean | Officer Innes | 1 | 1 |
| Antonio D. Charity | Michael Nelson | Secret Serviceman | 1 | 1 |
| Brandon Molale | Beefy Patient | Officer Featherstone | 1 | 5 |
| Drew Powell | Carl Shatler | Ryder | 1 | 1 |
| Drew Rausch | John Finch | Julian Fortenberry | 1 | 1 |
| Michael Steger | Will Fischer | Tony | 1 | 1 |
| Misha Gonz-Cirkl | Social Worker | Witch #4 | 2 | 2 |
| Jessy Hodges | Donna | Mustard | 1 | 2 |
| Cheryl White | Lynn Connors | Mrs. Hamby | 1 | 1 |
| Erica Gimpel | Bethany Anderson | Faerie Elder | 1 | 1 |
| Melinda Page Hamilton | Dr. Jennifer Stanley | Miss Steeler | 1 | 1 |
| Terrell Lee | Diplomatic Security Guard | Mr. Stewart | 1 | 1 |
| Cal Gibson | Larry Keys | Older Vampire | 1 | 1 |
| Patrick Mapel | Ricky | Sean | 1 | 1 |
| Martin Spanjers | Hunter Chapman | Young Sam | 1 | 2 |
| Aileen Burdock | Publicist | White Room Vampire | 1 | 2 |
| Betsy Baker | Barb | Midwife | 1 | 1 |
| Cathryn de Prume | Mrs. Nash | Warlow's Mother | 1 | 1 |
| Eugene Byrd | Danny Ford | Jerome | 1 | 1 |
| George Gerdes | Norman Sholman | Sid Matt Lancaster | 1 | 1 |
| Josh Kelly | Kyle | Frat Boy | 1 | 1 |
| Scott Klace | Dr. Jordan Wagner | Jimmy | 1 | 1 |
| Robin Hines | Cute Girl | Harley | 2 | 1 |
| Catheryn Brockett | Bentley Nurse | Lurlene | 1 | 1 |
| Deborah Puette | Trish | Sarah Compton-Harris | 1 | 1 |
| Elayn J. Taylor | Loretta | Mable | 1 | 1 |
| Matthew Glen Johnson | Arvin | Team Captain #1 | 1 | 1 |
| Susan Merson | Lorraine | Woman in Booth | 2 | 1 |
| Colby French | Mr. Filson | Frank | 1 | 1 |
| Mandy Levin | Dana Leggett | Nurse | 1 | 1 |
| Shannon Welles | Babs Martin | Olivia | 1 | 1 |
| Cody Christian | Brad Walker | Screaming boy | 1 | 1 |
| Cyd Strittmatter | Dr. Alicia Krause | Claire Shelby | 1 | 1 |
| Abbie Cobb | Francis "Frankie" Keller | Lindsey | 1 | 1 |
| Christina Scherer | Lauren | Occupy Girl | 1 | 1 |
| Jason Kelley | Chuck | AHQ Guard #1 | 1 | 2 |
| Nate Reese | Father of Patient #1 | Man in Church | 1 | 1 |
| Boo Arnold | Mr. James | Security Chief | 1 | 1 |
| Elise Robertson | Ms. Johnson | Rita | 1 | 1 |
| Duane R. Shepard, Sr. | Trial Patient #5 | Customer #2 | 1 | 1 |
| John Henry Canavan | Stewart Tyler | Good Old Boy Vampire | 1 | 1 |
| Kim Swennen | Kelly | Well Dressed Woman | 1 | 1 |
| Jeremy Cohenour | Dr. Boyd | Fangtasia Protestor #1 | 1 | 1 |
| John Deignan | Vincent Freeman | Factory Foreman | 1 | 1 |
| Spencer Hill | Reporter Dan | Reggie | 1 | 1 |
| Tahmus Rounds | Harry | Drunk Man | 1 | 1 |
| Clint Culp | Mr. Quaid | Vampire Hank | 1 | 1 |
| Marcus McGee | Boy Band Geek | James | 1 | 1 |
Cast data from TVmaze, licensed CC BY-SA 4.0.