All 177 actors in both ER and Private Practice
177 actors have appeared in both ER and Private Practice, across 442 episodes. The most-credited is Conni Marie Brazelton, Nurse Connie Oligario in ER and Judge R.L. Hansen, Judge Faye Daniels in Private Practice.
| Actor | In ER | In Private Practice | Eps | Eps |
|---|---|---|---|---|
| Conni Marie Brazelton | Nurse Connie Oligario | Judge R.L. Hansen, Judge Faye Daniels | 113 | 3 |
| Sara Gilbert | Dr. Jane Figler | Kelly | 15 | 1 |
| Justina Machado | Officer Claudia Diaz, Ms. Cruz | Stephanie Kemp | 9 | 6 |
| Michael B. Silver | Dr. Paul Myers | David Gibbs | 12 | 2 |
| Dinah Lenney | Nurse Shirley | Mrs. Hobart | 74 | 1 |
| Ming-Na Wen | Dr. Jing-Mei "Deb" Chen | Kara Wei | 8 | 1 |
| Paula Malcomson | Meg Riley | Hillary Loveman | 8 | 1 |
| Hallee Hirsh | Rachel Greene | Melissa | 14 | 1 |
| Gina Ravera | Dr. Bettina DeJesus | Dawn | 13 | 1 |
| Amy Aquino | Dr. Janet Coburn | Claire | 26 | 1 |
| Amanda Foreman | Missy Voltaire | Katie Kent | 1 | 5 |
| Blue Deckert | Watch Commander | Detective Joe Price | 1 | 5 |
| Erik Palladino | Dr. Dave Malucci | Mitch Thompson | 5 | 1 |
| Carter MacIntyre | Wallace | Nick Calhoun | 1 | 3 |
| Bresha Webb | Dr. Laverne St. John | Melanie White | 10 | 1 |
| Alex Kingston | Dr. Elizabeth Corday | Dr. Marla Thomkins | 1 | 2 |
| Emily Rose | Dr. Tracy Martin | Elisha | 11 | 1 |
| Miles Heizer | Joshua Lipnicki | Michael | 4 | 1 |
| Paul Dooley | Henry Lewis | Abe Nussbaum | 4 | 1 |
| Valerie Mahaffey | Joi Abbott | Marilyn Sullivan | 4 | 1 |
| Jillian Bach | Med Student Penny Nicholson | Debra Diamanti | 5 | 1 |
| Romy Rosemont | Joanne Bairos | Jackie | 1 | 1 |
| Louise Fletcher | Roberta "Birdie" Chadwick | Frances Wilder | 3 | 2 |
| Mirron E. Willis | Detective Watkins | District Attorney | 4 | 1 |
| Alison White | Scrub Nurse | Roberta Colby | 1 | 2 |
| Betsy Brandt | Franny Myers | Joanna Gibbs | 1 | 2 |
| Ernie Hudson | Colonel James Gallant | Frank Kimble | 2 | 1 |
| Maury Sterling | Dr. Nelson | Kurt Wilson | 5 | 1 |
| Robin Weigert | Nicole | Amelia Sawyer | 1 | 2 |
| Debra Mooney | Leila Morgan, Barbara Feingold | Sylvie | 3 | 1 |
| Liza Weil | Samantha Sobriki | Andi | 3 | 1 |
| Scott Michael Campbell | EMT Reilly Brown | Gregory Milford | 7 | 1 |
| Jonathan Scarfe | Chase Carter | Mr. Murphy | 8 | 1 |
| Michelle Wong | Tiffany | Sheila | 4 | 1 |
| Bruno Campos | Dr. Eddie Dorset | Dr. Scott Barker | 5 | 1 |
| Dahlia Salem | Dr. Jessica Albright | Gloria Murphy | 7 | 1 |
| Alex Rocco | Martin Trudeau | Ed Diamanti | 1 | 1 |
| Amy Morton | Mrs. Walters | Leni | 1 | 1 |
| Anne Dudek | Paula Gamble | Lori | 1 | 1 |
| Annie Fitzgerald | Devin Paxon | Jasmine Spencer | 1 | 1 |
| Chris Butler | Cop | Chris | 1 | 1 |
| Christopher Wiehl | Mr. Lattimer | Jeffrey | 1 | 2 |
| Dwier Brown | Dr. David Herlihy | Matthew | 3 | 1 |
| Elden Henson | Fingerless Guy | Damon | 1 | 1 |
| Emily Rios | Tracy Martinez | Angela Reilly | 1 | 3 |
| Frances Fisher | Helen Kingsley | Ruby Broome | 1 | 1 |
| John Prosky | Mr. Brooks | Jerry Murphy | 4 | 1 |
| Jossie Thacker | Formidable Woman | Anesthesiologist | 1 | 2 |
| Keiko Agena | Mrs. Shimahara, Mrs. Vasquez | Sister Amy | 2 | 1 |
| L. Scott Caldwell | Dr. Rabb | Gillian | 2 | 1 |
| Linara Washington | Rena Carlson, Young Woman on Train | Tracy Woods | 2 | 1 |
| Michael Patrick McGill | Detective Ed Bernstein, Security #1, Officer Jeffries | Marshall | 6 | 1 |
| Michael Reilly Burke | Dick White | Simon McConnell | 1 | 3 |
| Tom Amandes | David Gardner | Charlie Jensen | 1 | 1 |
| Tom Irwin | Gabriel Milner | Father Mark | 1 | 1 |
| Barbara Eve Harris | Sakina, Mrs. Kendrick | Melinda Stinson | 3 | 1 |
| Judith Hoag | Mrs. Brenner | Angie McConnell | 1 | 3 |
| Ashley Johnson | Dana Ellis | Kelly | 2 | 1 |
| Molly Price | Mrs. O'Fallon, Officer Faith Yokas | Andrea | 2 | 1 |
| Patricia Lentz | Nursing Supervisor | Judge | 2 | 1 |
| Ren Hanami | NICU Nurse | Concierge | 2 | 1 |
| Adina Porter | Mrs. Hopkins | Stacy Hatcher | 1 | 1 |
| Cristine Rose | Mrs. Martinez | Mrs. Freedman | 1 | 1 |
| Currie Graham | James | Ryan Mason | 1 | 1 |
| David Eigenberg | Detective Trent Mallory | Frank | 1 | 1 |
| Eyal Podell | Sammo | Zach | 1 | 1 |
| J. Rene Pena | Mrs. Mode | Gladys | 1 | 3 |
| Jean Sincere | Gladys | Gloria Walker | 1 | 1 |
| Joe Nieves | Tony Dejesu | Greg | 1 | 1 |
| John Lacy | Kevin Poole | Jim Davies | 1 | 1 |
| Larry Sullivan | Martin Pryor | Bob Schwartz | 1 | 1 |
| Lisa Waltz | Mrs. Wimbur | Rachel | 1 | 1 |
| Rosalind Chao | Dr. Theresa Chow | Lillie Jordan | 1 | 1 |
| Amy Stewart | Linsey Cordova | Beth Burton | 2 | 1 |
| Clea DuVall | Katie Reed | Natasha | 2 | 1 |
| Jeris Lee Poindexter | Nate, Rafe | Mechanic | 2 | 1 |
| Michael Jace | Bill Nelson | Randy Hatcher | 2 | 1 |
| Albert Hall | James Anderson | Lewis Cartwright | 1 | 1 |
| Amy Pietz | Loren | Isabelle | 1 | 1 |
| Bruce Nozick | Craig Simon | Bill Henderson | 2 | 1 |
| Cheryl White | Meryl Sites | Robin Miller | 1 | 1 |
| Christopher Boyer | Paxton the Opossum | Grant Murphy | 1 | 1 |
| Christopher Cousins | Kyle Kolber | Eli Wilson | 1 | 1 |
| Freda Foh Shen | Audiologist | Judge | 3 | 1 |
| Geoffrey Rivas | Haven | Diego | 1 | 1 |
| Holliston Coleman | Brianne Cooper | Tess Sullivan | 1 | 1 |
| Jessica Tuck | Dr. Hemmings | Rosie Graham | 1 | 1 |
| Kim Estes | Lieutenant Higgins | Mediator | 1 | 1 |
| Missy Yager | Nicole Woodman | Megan Stewart | 1 | 2 |
| Rebecca Field | Psych Woman | Rachel Gold | 1 | 1 |
| Roxanne Hart | Mrs. Kottmeier | Ellen Miller | 2 | 1 |
| Rusty Schwimmer | Grollman | Ashley Minahan | 1 | 1 |
| Sara Rue | Jane | Shira Cole | 1 | 1 |
| Shane Johnson | Jason | Dave Walker | 1 | 1 |
| Stacey Travis | Detective Weller | Paige Merring | 2 | 1 |
| Tom Virtue | Pares | Dr. Warren | 1 | 1 |
| Aldis Hodge | Brad Enloe, Young Man | Esau Ajawke | 2 | 1 |
| Suanne Spoke | Mrs. Robbins, OB Receptionist | Kasey Smith | 2 | 1 |
| Amanda Aday | Pregnant Waitress | Patty | 1 | 1 |
| Amy Farrington | Sandy Mader | Lisa Nussbaum | 1 | 1 |
| Audrey Wasilewski | Officer Wetterling | Janet | 1 | 1 |
| Bonnie Burroughs | Candy | Instructor | 1 | 1 |
| Clare Carey | Shauna | Pam Tanner | 1 | 1 |
| John Cothran, Jr. | Dennis Gant, Sr. | Judge Albert Longmuir | 1 | 1 |
| Joshua Wolf Coleman | Respiratory Therapist | LAPD #2 | 1 | 1 |
| Kathe Mazur | Kate Nelson | Terri Bishop | 1 | 1 |
| Marisol Nichols | Angie | Lily Reilly | 1 | 1 |
| Max Arciniega | Nick Vasquez | Paul Gonzales | 1 | 1 |
| Megan Henning | Katie Milner | Lauren Woods | 1 | 1 |
| Mimi Kennedy | Sgt. O'Malley | Eleanor Bergin | 1 | 1 |
| Molly Hagan | Meredith Smart | Karen Adams | 1 | 1 |
| Ron Perkins | Mr. Elmore | Tom Peterson | 1 | 1 |
| Russell Edge | CT Tech | Anesthesiologist | 3 | 1 |
| Stephanie Childers | Hilary | Donna Jackson | 1 | 1 |
| Tom Choi | Zafares | Jake | 1 | 1 |
| K.T. Thangavelu | Dr. Subramanian | Social Worker | 2 | 1 |
| Alice Lo | Lenore Fong | Suchin | 1 | 1 |
| Anne Rutter | Lois | Darcy's Mom | 1 | 1 |
| Dwana White | Eliza | Counselor | 1 | 1 |
| Jacqueline Hahn | Dr. Bazzano | Grace | 1 | 1 |
| Jeanette Brox | Stacy Miller | Lizzie Hagan | 1 | 1 |
| Jillian Armenante | Tamara Gordon | Arlene Perkins | 1 | 1 |
| Joan McMurtrey | Birdwatcher | Jennifer Debray | 1 | 1 |
| Leonard Roberts | Police Officer | Ryan | 1 | 1 |
| Liz Torres | Sarah Wilson | Judge Ortiz | 2 | 1 |
| Marin Hinkle | Kathy | Beverly | 1 | 1 |
| Sean Moran | Mr. Blinker | Judge McLennan | 1 | 2 |
| Stefanie Black | Tiffany | Assistant D.A. | 1 | 1 |
| Glenn Taranto | O'Mally, Rizzo | Detective Lampert | 2 | 1 |
| Kevin Berntson | Student #1, Willie | Anthony Parker | 2 | 1 |
| Rafael J. Noble | Smitty | Judge | 2 | 1 |
| Baadja-Lyne Odums | Driver | Mrs. Koster | 1 | 1 |
| Brad Grunberg | Masked Man | Mover | 1 | 1 |
| Cullen Douglas | Marvin | Hal Jarvis | 1 | 1 |
| Deborah Lacey | Det. Tincreed | Marsha | 1 | 1 |
| Deedee Michaels | Sally | Secretary | 1 | 1 |
| Eileen Ryan | Barbara Dean | Marion | 1 | 1 |
| Elizabeth Penn Payne | Margie | Judge | 1 | 1 |
| Ivar Brogger | Deposition Attorney | Ronald Debray | 1 | 1 |
| James Francis Ginty | Frick | ER Intern | 1 | 1 |
| Juliette Goglia | Sydney Carlyle | Sarah Pierce | 1 | 1 |
| Patrick O'Connor | CT Surgeon | Minister | 1 | 1 |
| Paul Cassell | Ed Gamble | Jason Dupree | 1 | 1 |
| Ryan Michelle Bathé | Miss Evelyn | Robin | 1 | 1 |
| Tequan Richmond | Boy | Tyler Hatcher | 1 | 1 |
| Vince Grant | Jeff Woodman | Greg Bishop | 1 | 1 |
| Michael C. Mahon | Joe | Detective Smith | 2 | 1 |
| Elaine Kagan | Mrs. Shearer | Annette | 1 | 1 |
| Elizabeth Sampson | Norma Beckwith | May | 1 | 1 |
| Holly Gagnier | Tracy Young | Nina | 1 | 1 |
| Kari Coleman | Mona | Laura Wallace | 1 | 1 |
| Karl T. Wright | Dr. Norris | Dr. Dave | 1 | 1 |
| Larry Clarke | Male Lawyer | George Walters | 1 | 1 |
| Lin Shaye | Margaret | Mrs. Taylor | 1 | 1 |
| Ming Lo | Lindsey Jang | Lawyer | 1 | 1 |
| Nick Massouh | Sadiq | Elliot | 1 | 1 |
| Patty McCormack | Mrs. Dwyer | Cynthia | 1 | 1 |
| Wayne Wilderson | Dr. Claypool | Neil Delhom | 1 | 1 |
| Wendy Gazelle | Julie Hembree | Corinne Lee | 1 | 1 |
| Anne Marie Howard | Shoud | Pam | 1 | 1 |
| Ariel Felix | Student #14 | Surgical Resident | 1 | 1 |
| Damani Roberts | Sammy | Cooper's Patient | 1 | 1 |
| Jayden Lund | Workman #2 | Patrick | 1 | 1 |
| Jeffrey Lorenzo | Obay | Older Boy | 1 | 1 |
| Lauren Bowles | Hannah | Cyndy Roberts | 1 | 1 |
| Bob Larkin | Junior Neurologist | Irv | 1 | 1 |
| Dig Wayne | Dr. Berkley | Mr. Nelson | 1 | 1 |
| Greg Ainsworth | Dennis | Bob Yates | 1 | 1 |
| Greta Sesheta | Mrs. Bassett | Nora | 1 | 1 |
| Jim Gleason | Little Girl's Father | Detective Fallon | 1 | 1 |
| Renee Faia | Brianna Thomas | Woman | 1 | 1 |
| Ellis E. Williams | McClintock | Father Dave | 1 | 1 |
| William Charlton | Man | Prosecutor | 1 | 1 |
| Jillian Bowen | Katie Odachowski | Renee | 1 | 1 |
| JoAnn Willette | Beth Lotery | Kim's Mother | 1 | 1 |
| Mike Madrigal | Granger | Foreman | 1 | 1 |
| Tim Quill | Josh Torren | Ted | 1 | 1 |
Cast data from TVmaze, licensed CC BY-SA 4.0.