All 145 actors in both American Horror Story and The Mentalist
145 actors have appeared in both American Horror Story and The Mentalist, across 296 episodes. The most-credited is Frances Conroy, Moira O'Hara (Old), Myrtle Snow, Shachath in American Horror Story and Elspeth Cook in The Mentalist.
| Actor | In American Horror Story | In The Mentalist | Eps | Eps |
|---|---|---|---|---|
| Frances Conroy | Moira O'Hara (Old), Myrtle Snow, Shachath | Elspeth Cook | 26 | 1 |
| Rebecca Wisocky | Lorraine Harvey | Brenda Shettrick | 3 | 9 |
| Fredric Lehne | Frank McCann | US Marshal Exley | 7 | 1 |
| Azura Skye | Fiona | Tamzin Dove | 4 | 1 |
| Frederick Koehler | Real Lot Polk | Tommy Olds | 4 | 1 |
| Tara Karsian | Chef Bertie | Medical Examiner | 3 | 2 |
| Carlo Rota | Anton LaVey | Dimitri Zubov | 3 | 1 |
| Craig Sheffer | Richard Nixon | Gary Philo | 3 | 1 |
| John Lacy | Mikey | Kyle Rayburn | 2 | 1 |
| Robin Weigert | Real Mama Polk, Coucilwoman Martha Edwards, Cynthia Potter | Eliza Green | 5 | 1 |
| Colby French | Officer | Jason Kern | 4 | 1 |
| Evan Peters | Charles Manson, Andy Warhol, David Koresh | Oliver McDaniel | 4 | 1 |
| Helena Mattsson | Agnetha | Elsa Struven | 4 | 1 |
| William Mapother | The Driver | Richard Haibach | 1 | 4 |
| Drew Powell | Det. Collier | Reede Smith | 1 | 5 |
| Eric Stonestreet | Derek | Malcolm Boatwright | 1 | 1 |
| Angela Sarafyan | Alice | Adrianna Jonovic | 2 | 1 |
| Josh Braaten | Douglas Pryor | Deputy Todd Johnson | 2 | 1 |
| Zack Ward | Roger | Whit Naylor | 2 | 1 |
| Charles Malik Whitfield | Mason Harris | Cole Ruger | 3 | 1 |
| Jon Jon Briones | Grand Chancellor Ariel Augustus | Mr. Lam | 3 | 1 |
| Tom Virtue | Priest, Principal Johnson, Reporter #1 | George Palmer | 3 | 1 |
| Mark Engelhardt | Carl | Ben Kitchen | 5 | 1 |
| Aimee Carrero | Female Twisty Victim | Cassie | 1 | 1 |
| Alanna Ubach | Jo | Dr. Gidry | 1 | 1 |
| Dot-Marie Jones | May, Trooper Jan Remy | Airport Manager | 2 | 1 |
| Henry G. Sanders | Mr. Royale, Willie | Willie Shubert | 2 | 1 |
| Jorge-Luis Pallo | Pedro Morales | Officer Downs | 3 | 1 |
| Joseph Will | Councilman Perry Donner-Scott | Steven Wench | 2 | 2 |
| Kathleen Rose Perkins | Peggy | Willa Brock | 1 | 1 |
| Matthew John Armstrong | Det. Byers | Deputy Nick Fisher | 3 | 1 |
| Riley Voelkel | Fiona Goode (Young) | Tristan | 3 | 1 |
| Shauna Bloom | Obstetrician | Rebecca Anderson | 1 | 3 |
| Steven Hack | Coroner | Brother David | 1 | 2 |
| Todd Stashwick | Blake | Jared Renfrew | 1 | 1 |
| W. Earl Brown | Phil Critter | Rulon Farnes | 1 | 1 |
| Celia Finkelstein | Gladys | Deb Granger | 6 | 1 |
| Dennis Cockrum | Senator Herbert Jackson | Cellmate | 2 | 1 |
| Mark Espinoza | Jorge | Ed MacVicar | 2 | 1 |
| Kyle Davis | Dallas | David Charles | 4 | 1 |
| Dina Meyer | Nora Campbell | Abigail Barge | 1 | 1 |
| John Aylward | Father Malechi | Dr. Lewis Stutzer | 1 | 1 |
| Kyle Secor | Bill | Father Peter DiBuono | 1 | 1 |
| Lauren Stamile | Wife | Madison Yardley | 1 | 1 |
| Nick Chinlund | Warden | Alex Jane | 1 | 1 |
| Rodney Rowland | Milo | Bartender | 1 | 1 |
| Scott Lawrence | Det. Webb | De Shaun Braemer | 1 | 1 |
| William R. Moses | Frank | Archie Bloom Sr. | 1 | 1 |
| Mary-Pat Green | Nun #1 | Bureaucrat | 2 | 1 |
| Meg Wolf | Neo-Natal Nurse | Stacey | 2 | 1 |
| Anthony Ruivivar | Ricky Ramirez, Miguel Ramos | Victor Phipps | 3 | 1 |
| Chelsea Alden | Alissa | Young Holly | 3 | 1 |
| Andrew Leeds | Dr. Dunphy | Drew Yost | 1 | 1 |
| Blake Shields | Tony | Mike Milligan | 1 | 1 |
| Brando Eaton | Kyle Greenwell | Danny Kurtik | 2 | 1 |
| Brendan McCarthy | Detective Monroe | Lance Gladstone | 1 | 1 |
| Brian Howe | Mark Phillips | Arliss St. Germain | 1 | 1 |
| Debra Christofferson | Mrs. Stone | Kay Vickers | 1 | 1 |
| John Prosky | CEO Frank | Dr. Evan Quick | 1 | 1 |
| Mark Ivanir | Nikolai Alexandrovich | Jan Nemic | 1 | 1 |
| Richard Gunn | Chief Deputy | Barlow Flemming | 1 | 1 |
| Tom Gallop | Mr. Carmichael | Charlie McInnis | 1 | 1 |
| Travis Schuldt | Mr. Campbell | Curtis Whitaker | 1 | 1 |
| V.J. Foster | Henry Kissinger, Truck Driver | Dickie Yuntz | 2 | 1 |
| Cyd Strittmatter | Nun #2, Woman in Bed | Neurologist | 2 | 1 |
| Joe Egender | Billy | Bart Henrik | 2 | 1 |
| Stacy Highsmith | Grace | Receptionist | 1 | 2 |
| Bryce Johnson | Neil Armstrong | Ranger Kyle | 1 | 1 |
| Charlene Amoia | Woman | Melaina Mendelssohn | 1 | 1 |
| Cheyenne Wilbur | Professor | Mike | 1 | 1 |
| David Barrera | Dr. Kaplan | Frank Rodriguez | 1 | 1 |
| David Bowe | Detective | Brady Walton | 1 | 1 |
| David Naughton | Mr. Samuels | Neurologist | 1 | 1 |
| Don Stark | Kit's Lawyer | Armon Gagnon | 1 | 1 |
| Eugene Byrd | Grayson's Partner | Russell Bigelow | 1 | 1 |
| Ian Anthony Dale | Dr. David Zhong | Det. Nathaniel Kim | 1 | 1 |
| Jack Conley | Officer Woods | Chief Donner | 1 | 1 |
| Jacqueline Piñol | Dr. Reyes | News Anchor | 1 | 1 |
| Jamie Harris | R. Franklin | Marcus Lansdale | 1 | 1 |
| Julie Claire | Stephanie Holder | Sylvia Clare | 1 | 1 |
| Lesley Fera | Female Cooperative Agent | Leslie Sloop | 1 | 1 |
| Lyn Alicia Henderson | Det. Barker | Tech | 1 | 1 |
| Mageina Tovah | Bianca Forest | Constance | 1 | 1 |
| Steven Culp | Brooke's Father | Morgan Tolliver | 1 | 1 |
| Amir Arison | Joe Escandarian | Ryan Kasmir | 1 | 1 |
| Amy Farrington | Mrs. Reynolds | Melinda Drew | 1 | 1 |
| Kevin Foster | Crazed Santa, Sheriff | Officer Jones | 2 | 1 |
| Lorinne Vozoff | Used Bookstore Owner | Ernie's Grandma | 1 | 1 |
| Marco Rodríguez | El Rey | Hector Brava | 1 | 1 |
| Mark Daugherty | Chan | Horatio | 1 | 1 |
| Rebecca Metz | Lorene | Carol Gentry | 1 | 1 |
| Rif Hutton | Elder #3 | Doctor | 1 | 1 |
| Exie Booker | Commander, Pundit #2 | Corrections Officer | 2 | 1 |
| Geoffrey Rivas | Det. Jack Colquitt | Captain Bocanegra | 2 | 1 |
| Heather Olt | Nurse Regina, Shirley | Stage Manager | 2 | 1 |
| Jeff L. Williams | Air Force General, Senior Officer | Alton Creek | 2 | 1 |
| Andrew Rothenberg | Mr. Potter | Jack Hellion | 1 | 1 |
| Bryan Rasmussen | Hank Stone | Mason Hunston | 1 | 1 |
| David Ury | Robber | Col. James Harris | 1 | 1 |
| Dean Cameron | Reporter #2 | Doctor | 1 | 1 |
| Devon Graye | Jed Potter | Ethan Bittaker | 1 | 1 |
| Elizabeth Bond | Rena | Instructor Missy Jenkins | 1 | 1 |
| Frank Gallegos | Cameraman | Jupiter Gallidos | 1 | 1 |
| Gregory Sporleder | Peter McCormick | Terence Badali | 1 | 1 |
| Jake Olson | Soldier | Gabriel "Gabe" Meadows | 1 | 1 |
| James MacDonald | The Horn | Sgt. Bigley | 1 | 1 |
| Karl Makinen | Lyndon B. Johnson | Christon Phelps | 1 | 1 |
| Lily Knight | Sister Felicity | Leslie Palmer | 1 | 1 |
| Michael Whaley | Detective | Elwood Pierce | 1 | 1 |
| Michelle Page | Myrtle Snow (Young) | Hope | 1 | 1 |
| Troy Winbush | Newscaster | Phil Debolt | 1 | 1 |
| Abbie Cobb | Dorothy Hudson | Tess | 1 | 1 |
| Adam Lieberman | Det. Colquitt | Bomb Squad Officer | 1 | 1 |
| Jordan David | Kevin Gedman | Ansel Dunninger | 2 | 1 |
| Roxana Brusso | Dr. Kohan | Elena | 1 | 1 |
| Sal Landi | Detective #2 | Sean Horlick | 1 | 1 |
| Steve Bannos | Policeman | Bartender | 1 | 1 |
| Brandon Morales | Prison Guard | 2nd SWAT Team Commander | 1 | 1 |
| Mark Atteberry | Doctor | Jack Mitchell | 1 | 1 |
| Preston James Hillier | SWAT Officer | Sacramento PD | 1 | 1 |
| Adam Dunnells | Freddy | Fred Kittel | 1 | 1 |
| Blake Sheldon | Cooper | Marcus Whitmer | 1 | 1 |
| Jim Hoffmaster | Janitor | Civilian Employee | 1 | 1 |
| Kelly Schumann | Azalea | Estelle | 1 | 1 |
| Paul David Story | Secret Service Agent #2 | Carson | 1 | 1 |
| Ryan Fisher | Shopper #3 | James | 1 | 1 |
| Seth Coltan | Naked Man | Tourist Dad | 1 | 1 |
| Gary Kraus | Mack | Larry Kincaid | 1 | 1 |
| Kathrine Herzer | Young Anne Frank | Sandcastle Kid | 1 | 1 |
| Kirk Bovill | Phil | Driver | 1 | 1 |
| Michael Broderick | Navy Admiral | Deputy Cole | 1 | 1 |
| Tacey Adams | Sister Colette | Lissie Calhoun | 1 | 1 |
| Garrett Nichols | Leonard Landecker | Homeowner | 1 | 1 |
| Jim Gleason | Dr. Friedman | Neil | 1 | 1 |
| John Lee Ames | Rudy | Jim Matthews | 1 | 1 |
| Karen Constantine | Nun | Good Samaritan | 1 | 1 |
| Matt Lasky | Jimbo | Brian Whitmer | 1 | 1 |
| Danielle Kennedy | Tudy | Woman | 1 | 1 |
| Diane Mizota | Reporter #2 | Reporter #2 | 1 | 1 |
| Joe Howard | Speaker | Harrison | 1 | 1 |
| Mike Peebler | Officer | Ross Smead | 1 | 1 |
| Samantha Gros | EMT | Female Paramedic | 1 | 1 |
| Maz Siam | Cabbie | Mac Lonagul | 1 | 1 |
| Teddy Lane, Jr. | Cop | Cop | 1 | 1 |
| James Laski | Truck Driver | Dan Becker | 1 | 1 |
← American Horror Story × The Mentalist
Cast data from TVmaze, licensed CC BY-SA 4.0.