All 266 actors in both ER and House
266 actors have appeared in both ER and House, across 507 episodes. The most-credited is Lyn Alicia Henderson, Paramedic Pamela Olbes in ER and Vet in House.
| Actor | In ER | In House | Eps | Eps |
|---|---|---|---|---|
| Lyn Alicia Henderson | Paramedic Pamela Olbes | Vet | 149 | 1 |
| Anne Dudek | Paula Gamble | Dr. Amber Volakis | 1 | 19 |
| Jennifer Crystal Foley | Reba | Rachel Taub | 1 | 18 |
| Elizabeth Mitchell | Dr. Kim Legaspi | Sister Mary Augustine | 14 | 1 |
| Sharif Atkins | Dr. Michael Gallant | Hayes Macklin | 12 | 1 |
| Donal Logue | Flight Nurse Chuck Martin | Cyrus Harry | 11 | 1 |
| Michael Weston | Rafe Hendricks | Lucas Douglas | 2 | 10 |
| Stephanie Venditto | Diana Rushing | Nurse Brenda | 1 | 11 |
| Kal Penn | Narajan | Dr. Lawrence Kutner | 1 | 10 |
| Erica Gimpel | Adele Newman | Elizabeth Stone | 19 | 1 |
| Peter Jacobson | Susan's molester | Dr. Christopher Taub | 1 | 8 |
| Ron Perkins | Mr. Elmore | Dr. Ron Simpson | 1 | 8 |
| Scott Michael Campbell | EMT Reilly Brown | Joe | 7 | 2 |
| Tracy Vilar | Doris | Nurse Regina | 2 | 6 |
| Cress Williams | Officer Reggie Moore | Hospital Attorney | 14 | 1 |
| Harry Lennix | Dr. Greg Fischer | John Henry Giles | 6 | 1 |
| Diane Baker | Louise Duffy | Blythe House | 1 | 4 |
| Nigel Gibbs | Matson | Sanford Wells | 1 | 4 |
| China Jesusita Shavers | Olivia Evans | Hanna | 7 | 1 |
| Dahlia Salem | Dr. Jessica Albright | Max | 7 | 1 |
| Lori Petty | Shane | Janice Burke | 1 | 3 |
| Vernée Watson | April Wilson | Nurse Smits | 2 | 2 |
| Christina Vidal | Elena Vega | Sandy | 1 | 2 |
| Deborah Lacey | Det. Tincreed | Lorraine | 1 | 2 |
| George Wyner | Rabbi | Richardson | 2 | 1 |
| Currie Graham | James | Mark Warner | 1 | 4 |
| Dennis Boutsikaris | Dr. David Kotlowitz | Artie | 4 | 1 |
| Kip Pardue | Nurse Ben Parker | Brent Mason | 6 | 1 |
| Cindy Lu | Chinese Woman | Nurse Diane | 1 | 3 |
| Colleen Flynn | Jodi O'Brien | Enid | 1 | 1 |
| Dwier Brown | Dr. David Herlihy | George Carr | 3 | 1 |
| Emily Rios | Tracy Martinez | Sophia Valez | 1 | 1 |
| Freda Foh Shen | Audiologist | Cecile | 3 | 1 |
| James Le Gros | Dr. Max Rocher | Oliver | 3 | 1 |
| Jamie McShane | Josh Rushing | Captain McCreavey | 1 | 1 |
| Janel Moloney | Nancy | Maggie | 1 | 1 |
| John Kapelos | Mr. Irby | Dr. Kurtz | 1 | 1 |
| Julia Ling | Med Student Mae Lee Park, Michelle | Anne | 5 | 1 |
| Lee Tergesen | Mr. Mullen | Roy Randall | 1 | 1 |
| Lesley Fera | Helen Kolber | Kay | 1 | 1 |
| Michelle Clunie | Gretchen | Judy | 1 | 1 |
| Patrick Fugit | Sean Simmons | Jack Walters | 3 | 1 |
| Stephanie Erb | Mrs. Kinney | Charlotte | 1 | 1 |
| George Cheung | Mr. Chen, Mr. Fong | Xang | 4 | 1 |
| Alex Skuby | Renato (Medivac) | John Funsten | 2 | 1 |
| Anthony Starke | Dr. Craig | Roger | 2 | 1 |
| Julie Ariola | Emily | Nurse Dickerson | 4 | 1 |
| Adina Porter | Mrs. Hopkins | Claudia | 1 | 1 |
| Alan Rosenberg | Sam Gasner | Bruce Steinerman | 1 | 1 |
| Arlen Escarpeta | Adrian | Brant Macklin | 1 | 1 |
| Chris Tallman | Burt Mulligan | Vince | 1 | 1 |
| Christopher Rodriguez-Marquette | Marty Dorsett | Danny Jennings | 1 | 1 |
| Cynthia Nixon | Ellie Shore | Anica Jovanovich | 1 | 1 |
| David Bowe | Father of Unicycle Boy | Doug | 1 | 1 |
| Eyal Podell | Sammo | Yonatan | 1 | 1 |
| Henri Lubatti | Victor | Head Chef | 1 | 1 |
| Jake Thomas | Nick Riley | Ryan | 1 | 1 |
| Jamie Rose | Marilyn Bracken | Patti Mishner | 1 | 1 |
| Jason George | Ethan Mackiner | Brock Hoyt | 2 | 1 |
| Jenny O'Hara | Nurse Rhonda Sterling | Fran | 2 | 1 |
| John Prosky | Mr. Brooks | Dr. Bergin | 4 | 1 |
| José Zúñiga | Eduardo Lopez | Nate Weinmann | 2 | 1 |
| Judith Scott | Mandy Smith | Dana Miller | 1 | 1 |
| Katherine LaNasa | Janet Wilco | Melissa | 1 | 1 |
| Kay Lenz | Karen Palmieri | Mrs. Bradberry | 1 | 1 |
| Madison Davenport | Claire O'Fallon | Iris | 1 | 1 |
| Monique Gabriela Curnen | Nurse Blanca | Lupe | 1 | 1 |
| Nick D'Agosto | Andy | Keith Foster | 2 | 1 |
| Roger Aaron Brown | Dr. Jared Ames | Joseph Ntila | 1 | 1 |
| Roxanne Hart | Mrs. Kottmeier | Margo Davis | 2 | 1 |
| Sheryl Lee Ralph | Gloria Gallant | Stephanie | 2 | 1 |
| Smith Cho | Dr. Woo | Julia | 1 | 1 |
| Taraji P. Henson | Elan, Patrice | Moira | 2 | 1 |
| Thom Barry | T-Ball | Sykes | 1 | 1 |
| Thomas Dekker | 4 Year Old Boy | Boyd Stanley | 1 | 1 |
| Wentworth Miller | Mike Palmieri | Benjamin Byrd | 1 | 1 |
| Željko Ivanek | Bruce Resnick | Jason | 1 | 1 |
| Hedy Burress | Joanie Moore | Jill | 4 | 1 |
| Angel Oquendo | Thigh Patient | EMT Coumont | 1 | 3 |
| Demetrius Grosse | Officer Newkirk | Hacinte | 5 | 1 |
| K.T. Thangavelu | Dr. Subramanian | Surgeon | 2 | 1 |
| Keiko Agena | Mrs. Shimahara, Mrs. Vasquez | Dr. Cheng | 2 | 1 |
| Myndy Crist | Valerie Page | Elyse Snow | 2 | 1 |
| Natasha Gregson Wagner | Mary Warner | Sandra | 2 | 1 |
| Ruth Silveira | Chemo Tech Marni | Female Surgeon | 2 | 1 |
| Skyler Gisondo | Timmy Jankowski | Clancy | 2 | 1 |
| Aasha Davis | Maureen | Leona | 1 | 1 |
| Becky O'Donohue | Sophia | Karamel | 1 | 1 |
| Carla Gallo | Emma Miller | Janie | 1 | 1 |
| Christine Healy | Administrator Harriet Spooner | Janice | 3 | 1 |
| David Purdham | Dr. Kallis | Chef Anthony | 1 | 1 |
| Denise Dowse | Mrs. Lysell | Glenda | 1 | 1 |
| Desean Terry | Rodney | Charles | 1 | 1 |
| Drew Powell | Dennis Voltaire | Anthony | 1 | 1 |
| Holly Gagnier | Tracy Young | Michelle Berkley | 1 | 1 |
| Ivo Nandi | Emilio | Andres Tavares | 1 | 1 |
| Joanna Koulis | Neri Assad | Samantha Harmon | 1 | 1 |
| Judy Greer | Tildie Mulligan | Morgan | 1 | 1 |
| Kai Lennox | Steve Maldonado | George | 1 | 1 |
| Larry Clarke | Male Lawyer | Officer Gilmar | 1 | 1 |
| Mary Wickliffe | Evidence Tech | Mandi | 1 | 1 |
| Mimi Kennedy | Sgt. O'Malley | Greta | 1 | 1 |
| Nicole Bilderback | Claire | Caring Student | 1 | 1 |
| Pat Millicano | Mr. Hahn | Leon | 1 | 1 |
| Reggie Jordan | Street Sweeper | Anesthesiologist | 1 | 1 |
| Stephanie Courtney | Charlotte | Claire Carr | 1 | 1 |
| Sunil Malhotra | Lloyd | Mr. Damon | 1 | 1 |
| Vyto Ruginis | Paramedic Wright | Asst. Dist. Attorney Velez | 3 | 1 |
| Valeri Ross | McGillis | Sister Joan | 4 | 1 |
| Terry Maratos | Garvey | Brian | 2 | 1 |
| Carmen Argenziano | Howard Davis | Henry Dobson | 1 | 3 |
| Sonya Eddy | Harriet, Student Affairs Secretary | Sally | 3 | 1 |
| Amanda Foreman | Missy Voltaire | Olivia | 1 | 1 |
| Art LaFleur | Miles Kearney | Warner Fitch | 1 | 1 |
| Brad Grunberg | Masked Man | Irv | 1 | 1 |
| Christopher Cousins | Kyle Kolber | Doug | 1 | 1 |
| Clare Carey | Shauna | Ellie Miller | 1 | 1 |
| Eamon Hunt | Mrs. O'Leary's Cow | Neurologist, Surgeon | 1 | 2 |
| Eve Gordon | Mrs. Nugent | Jody | 1 | 1 |
| Garikayi Mutambirwa | John Deere Boy | Ruwe | 1 | 1 |
| Jordana Capra | OB Attending | Wealthy Wife | 1 | 1 |
| Joseph Culp | Roger | Russ Smith | 1 | 1 |
| Mark Harelik | James | Mr. Foster | 1 | 1 |
| Megan Follows | Christy Larkin | Jennifer Williams | 1 | 1 |
| Peter Birkenhead | Bite Victim's Father | Vincent | 1 | 1 |
| Sandra Marshall | Patron | Agnes | 1 | 1 |
| Sandra Purpuro | Mrs. Perrault | Marina | 1 | 1 |
| Seidy Lopez | Guitterez | Christina | 1 | 1 |
| Shirley Knight | Mrs. Burke | Georgia Adams | 1 | 1 |
| Shohreh Aghdashloo | Riza Kardatay | Afsoun Hamidi | 1 | 1 |
| Victor Raider-Wexler | Vascular Doctor | Judge Winter | 1 | 1 |
| Wayne Lopez | Benitez | C.O. Alvarez | 1 | 2 |
| Wendy Gazelle | Julie Hembree | Dan's Mother | 1 | 1 |
| Cynthia Ettinger | Linda Pryor, Mrs. Powell | Mrs. Simms | 2 | 1 |
| Alanna Ubach | Terry's Friend | Dr. Louise Harper | 1 | 1 |
| Alice Lo | Lenore Fong | Mrs. Ling | 1 | 1 |
| Art Chudabala | Greg | Dr. Michael A. Kondo | 1 | 1 |
| B.K. Cannon | Tammy | Natalie Soellner | 1 | 1 |
| Barry Pearl | Dr. Noble | Dr. Paulson | 1 | 1 |
| Brent Briscoe | Eli Ebee | Farmer | 1 | 1 |
| Charles Rahi Chun | Ben's Dad | Kwansik Park | 1 | 1 |
| Christine Avila | Corazon | Luisa | 1 | 1 |
| Donald Sage MacKay | Detective Lash | Neil | 1 | 1 |
| Elaine Kagan | Mrs. Shearer | Belinda | 1 | 1 |
| Erich Anderson | Mr. Bradley | Deran | 1 | 1 |
| Erika Alexander | Vatima Abika | Mrs. Fields | 1 | 1 |
| Hamilton Mitchell | Guy from Chairs | Infection Control Officer | 1 | 1 |
| Heather Kafka | Rhonda | Sarah | 1 | 1 |
| James McCauley | Dan Shore | Norris | 1 | 1 |
| Jascha Washington | Hector | Nick | 1 | 1 |
| June Squibb | Social Security Daughter | Ramona | 1 | 1 |
| Jurnee Smollett | Romy | Tracy | 1 | 1 |
| Kathe Mazur | Kate Nelson | Sandy | 1 | 1 |
| Keri Lynn Pratt | Audrey Hoffman | Amy Errington | 1 | 1 |
| Kylee Cochran | Terri | Young Woman | 1 | 1 |
| Lucinda Jenney | Allison | Sister Mary Eucharist | 1 | 1 |
| Marin Hinkle | Kathy | Naomi Randolph | 1 | 1 |
| McNally Sagal | Madeline | Mrs. Miller | 1 | 1 |
| Randall Park | Yong-Jo Pak | Brad | 1 | 1 |
| Rob Evors | Gary | Tom | 1 | 1 |
| Scott Paulin | Dr. Kirsch | Bob | 1 | 1 |
| Shelly Cole | Laura Avery | Nurse Adrienne Maldonado | 1 | 1 |
| Tracy Howe | Gary | Stacey | 1 | 1 |
| William Charlton | Man | Mark | 1 | 1 |
| Meera Simhan | Mandy | Jody | 1 | 2 |
| Bob Rusch | Lillion | Phil | 1 | 1 |
| Braeden Lemasters | Sean | Adam | 1 | 1 |
| Carole Gutierrez | Landlady | Helen | 1 | 1 |
| Cassi Thomson | Lulu Davis | Kama Walters | 1 | 1 |
| Cheyenne Wilbur | Garrity | Minister | 1 | 1 |
| David Joyner | Dialysis Tech | Cardiac Surgeon #2 | 3 | 1 |
| Deirdre M. Smith | Lauren Nichols | Carol Moffatt | 1 | 1 |
| Diane Sellers | Mrs. Garrison | Gail Friedman | 1 | 1 |
| Elizabeth Karr | Betty Kesten | Hostess | 1 | 1 |
| Eltony Williams | Rossen | Co-Pilot | 1 | 1 |
| Evan Jones | Todd | Bill | 1 | 1 |
| Howard Hesseman | Dr. James Broderick | Henry | 1 | 1 |
| J.R. Cacia | Ogilvie | Officer Soltes | 1 | 1 |
| Jake Richardson | Ian Summerlin | Stevie Lipa | 1 | 1 |
| Johnny Sneed | James | Todd | 1 | 1 |
| Joram Moreka | Luambo | Father | 1 | 1 |
| Michael Edwin | Drunk Man | Tax Accountant | 1 | 1 |
| Patrick St. Esprit | Mr. Thorpe | Keith Tannenbaum | 1 | 1 |
| Rif Hutton | Mr. Royston | Morris | 1 | 1 |
| Rod Britt | Mr. Helpful | Teller | 1 | 1 |
| Steve Kramer | Pediatric Surgeon | Ken | 1 | 1 |
| Jack Impellizzeri | Bartender, Man | Brian | 2 | 1 |
| Tom Wright | Wharton | Dr. Pilcher | 2 | 1 |
| Albert Owens | Cardiologist Zane | Major Mathewson | 1 | 1 |
| David A. Kimball | tbd | Lawyer | 1 | 1 |
| Eddie Pepitone | Dying Patient | Operator | 1 | 1 |
| Evelina Martinez | Sedgewick | Tall Girl | 1 | 1 |
| J.D. Jackson | Chuck Holmes | Ronald Westbrook | 1 | 1 |
| James DuMont | Clemens | George | 1 | 1 |
| Joe Marinelli | Joey | Director | 1 | 1 |
| John Eric Montana | Mr. Odachowski | Sam | 1 | 1 |
| John Rubinstein | Dr. Kenner | Dr. Ayersman | 1 | 1 |
| Joshua Wolf Coleman | Respiratory Therapist | Suburban Pharmacist | 1 | 1 |
| Khleo Thomas | Brian | Kenny | 1 | 1 |
| Lisa Darr | Nadine Wilkes | Emily | 1 | 1 |
| Marcus Folmar | Foreman | Security Guard | 1 | 1 |
| Sam Ayers | Mike Murphy | Large Man | 1 | 1 |
| Teddy Vincent | Vivian Nickelby | Mrs. Zebalusky | 1 | 1 |
| Jack Guzman | Morgan | Security Guard #1 | 2 | 1 |
| Michael Adler | Marty, Rick | E.R. Patient | 2 | 1 |
| Bayani Ison | Delivery Man | Sensei | 1 | 1 |
| Brian Leckner | Lloyd | Ivan | 1 | 1 |
| Bruno Amato | Sheriff | Lt. Smith | 1 | 1 |
| Bryan Fabian | Fernando | Classmate #3 | 1 | 1 |
| Christie Lynn Smith | Marina Grasso | Cindy Kramer | 1 | 1 |
| Duane R. Shepard, Sr. | Janitor | Hastings | 1 | 1 |
| Holmes Osborne | Dr. Sayers | Dr. Curtis | 1 | 1 |
| Karis Campbell | Mrs. Kenig | Pregnant Woman | 1 | 1 |
| Kevin Brief | Walter Brosnich | Officer Angle | 1 | 1 |
| Marcus Chait | Kyle | Mitch | 1 | 1 |
| Marcus Toji | Binkey | Dex | 1 | 1 |
| Matt DeCaro | Soccer Dad | McKenna | 1 | 1 |
| Patty Onagan | Dolores | Girlfriend | 1 | 1 |
| Remy Thorne | Milo | Kid | 1 | 1 |
| Sean Christopher Davis | Detective Maskins | Father | 1 | 1 |
| Allison Smith | Denny | Kayla | 1 | 1 |
| Bart Tangredi | Male Patron | Man | 1 | 1 |
| Caroline Lagerfelt | Andrea | Connie | 1 | 1 |
| Charles C. Stevenson Jr. | Capt. Eddie | Walter | 1 | 1 |
| Elizabeth Sung | Mrs. May Fong | Marilyn Park | 1 | 1 |
| Kathleen Macdonald | Sharon Downey | Sarah | 1 | 1 |
| Kim Estes | Lieutenant Higgins | Hall | 1 | 1 |
| Lauren Cohn | Kelly | Jodi Matthews | 1 | 1 |
| Mandy June Turpin | Viv Rafferty | Beth | 1 | 1 |
| Susan Grace | Gloria | First Table North | 1 | 1 |
| Taira Soo | Jordan | Anne Ayala | 1 | 1 |
| Tim Haldeman | Dr. Robert Wilson | Mature Man | 1 | 1 |
| Timothy McNeil | Rotolo | Patient #2 | 1 | 1 |
| Alejandro Patiño | Best Man | Cabbie | 1 | 1 |
| Bob McCracken | Ring | Doug | 1 | 1 |
| Brian Klugman | Russell | Stark | 1 | 1 |
| Dennis Howard | Dr. Steinman | Chaplain | 1 | 1 |
| Eric Kaldor | Bachelor #3 | Frank | 1 | 1 |
| Frank Clem | Turner | Bartender | 1 | 1 |
| Jamison Yang | Shuang Tseng | Peng | 1 | 1 |
| Jim Gleason | Little Girl's Father | Mitchell | 1 | 1 |
| John Lafayette | Harold Anderson | Dr. Schisgal | 1 | 1 |
| Jude Ciccolella | Roach Coach Charlie | Mendelson | 1 | 1 |
| Michael Whaley | Mr. Busey | Joe | 1 | 1 |
| Phyllis Lyons | Mrs. Tubbs | Dr. Schmidt | 1 | 1 |
| Tom Astor | Leahy | Pharma Guy | 1 | 1 |
| Wayne Sable | Student #12 | Kyle | 1 | 1 |
| Amy Dudgeon | Reid | Casey | 1 | 1 |
| George Sharperson | Sanitation Batter | Harris | 1 | 1 |
| Jonathan Palmer | Dr. Blevins | Minister | 1 | 1 |
| Michael Rivkin | Stan | Patient #4 | 1 | 1 |
| Sterling Beaumon | Danny Raskin | Boy Magician | 1 | 1 |
| Warren Davis | Kipness | Kent | 1 | 1 |
| Annette M. Lesure | Yolanda | Durdanna | 1 | 1 |
| John Lacy | Kevin Poole | Dr. Dave Thomas | 1 | 1 |
| Dale E. Turner | Daniel Harrison | Duane "Stomp" Milbratt | 1 | 1 |
| Kenneth White | Watson | Old Man | 1 | 1 |
| Pamela Shaddock | Reporter Winslow | Case Worker | 1 | 1 |
| Victor Buno | Male Administrator | Passenger #1 | 1 | 1 |
| Jerry Hauck | Umpire | Martin | 1 | 1 |
| Patrick O'Connor | CT Surgeon | Dr. Frankel | 1 | 1 |
| Kovar McClure | Young Dr. Oliver Kostin | Ron | 1 | 1 |
| Spencir Bridges | Ethan | Kid #3 | 1 | 1 |
| Gary LeRoi Gray | Mummy Boy | Chorus #4 | 1 | 1 |
| Gwen Mihok | Ellen | Carmen | 1 | 1 |
| Joey Gaynor | Burly Patient | Len | 1 | 1 |
Cast data from TVmaze, licensed CC BY-SA 4.0.