All 56 actors in both Barney Miller and ER
56 actors have appeared in both Barney Miller and ER, across 501 episodes. The most-credited is George Murdock, Lt. Ben Scanlon, Master Sgt. J.R. Reville in Barney Miller and Mr. Sidowski in ER.
| Actor | In Barney Miller | In ER | Eps | Eps |
|---|---|---|---|---|
| George Murdock | Lt. Ben Scanlon, Master Sgt. J.R. Reville | Mr. Sidowski | 12 | 1 |
| James Cromwell | Dr. Edmund Danworth, Edward Spencer, Jason Parrish | Bishop Stewart | 4 | 4 |
| Kenneth Tigar | Stefan Koepeknie, Elliot Porter, Fletcher | Dr. Keinholz | 6 | 2 |
| Phil Leeds | Arthur Bloom, Brent LaMear, Gilbert Letier | Husband | 7 | 1 |
| Mari Gorman | Officer Rosslyn Licori, Naomi Bender, Roberta Kerlin | Karlson | 6 | 1 |
| Mario Roccuzzo | Norman Deluca, Ed Brotsky, George Willis | Mr. Tanzi | 6 | 1 |
| Peggy Pope | Lonna Lane, Doris Carlisle, Frances Newbound | Mrs. Gainsley | 6 | 1 |
| Al Ruscio | Jack Norrell, Leonard Roth, Mr. Becker | Mr. Dellanova | 5 | 1 |
| Allan Miller | Dr. Gregory Bickman, Father Clement, Nelson Haskell | Bartholomew Lefkowitz | 4 | 1 |
| Sal Viscuso | Brenner, Joseph Beatty, Thomas Vitella | Mr. Weller | 4 | 1 |
| Bonnie Bartlett | Ellen Milford, Emily Loftis | Ruth Greene | 2 | 2 |
| Jenny O'Hara | Sgt. Holly Scofield, Teresa Schnable | Nurse Rhonda Sterling | 2 | 2 |
| Robert Costanzo | Bill Kerlin, Ed Foronjy, Professor Vincent Thorndyke | Pernicious Anemia Man | 3 | 1 |
| John LaMotta | Bellevue Hospital Attendant, Moving Van Driver, Paramedic | Ivan Gregor | 3 | 4 |
| David Clennon | Bodhisattva, Howard Speer, Howard Weckler | Jared Morgan | 5 | 1 |
| Luis Avalos | Antonio Mione, Jorge Jesus Maria Sanchez | Pediatrician | 2 | 1 |
| Michael Durrell | Howard Altman, Philip Kubrick | Bob Gilman | 2 | 1 |
| Stanley Kamel | Dr. Michael Packer, Lance Parks | Dr. Fin Loech | 2 | 1 |
| Stefan Gierasch | Andrew Glansman, Charles Foster Keller/Lennie/Neal, Dr. Joseph Burlson | Daniel | 5 | 1 |
| Steve Franken | Edward Foreman, Edward Novak | Hank Travis | 2 | 1 |
| Charlotte Rae | Mrs. Rebecca Sobel | Roxanne Gaines | 1 | 4 |
| Cal Gibson | Del Mitchell, Mayflower/Gibson, Mr. King | Kim Tadlock | 3 | 1 |
| Candice Azzara | Audrey McManus, Miss Lambert, Miss Lamota | Mrs. Roth | 3 | 1 |
| K Callan | Gwen Baxter | Kelly Robinson | 1 | 1 |
| Larry Gelman | Edward Sellers, Joseph Hilyer, Philip Bishop | Dubin | 3 | 1 |
| Roger Aaron Brown | Dr. Anthony Keeling | Dr. Jared Ames | 1 | 1 |
| Roscoe Lee Browne | Charlie Evans Jeffers | Reverend Matthew Lynn | 1 | 1 |
| Todd Susman | Andrew Siegel, Edward Yakel, Neil Hackett | Dr. Sam Jenkins | 4 | 1 |
| Barry Gordon | David Fingler, Stanley Fine | Baxter | 2 | 1 |
| Louis Giambalvo | Gerald Serrano, Warren Shippel | Security Guard David Hilliker | 2 | 1 |
| Eugene Elman | Eddie Schuman, Mr. Kaufmann, Rabbi Joseph Greenblatt | Jerry | 3 | 1 |
| Alice Hirson | Dorothy St. Clair | Mrs. Anderson | 1 | 1 |
| Anna Berger | Georgia Himmel, Miriam Buckman | Mr. Brazil's Caregiver | 2 | 1 |
| James Gallery | Christopher Galt, Neil Pomerantz | Seedy Man | 2 | 1 |
| Larry Hankin | Earl Kelso | Bearded Homeless Guy | 1 | 1 |
| Madison Mason | Joseph Pretano | Clive King | 1 | 1 |
| Phyllis Frelich | Madeline Schaefer | Dr. Lisa Parks | 1 | 2 |
| Susan Peretz | Norma Griswold | Mrs. Perry | 1 | 1 |
| Walter Olkewicz | Walter Cushing, William Krebs aka Bingo the Clown | Georgia's Man | 2 | 1 |
| Alix Elias | Louise Helton, Maggie DuBois | Roxanne | 2 | 1 |
| Anita Dangler | Ana Rada, Louise Myers | Lukesi | 2 | 1 |
| Dana Gladstone | Arthur Frane | Weingarten's Trepanation Expert | 1 | 1 |
| Dennis Howard | Jed Brinkman | Dr. Steinman | 1 | 1 |
| Marla Gibbs | Mrs. McBee | Cherise Barnes | 1 | 1 |
| Paul Kent | Ray Athens | Morgan | 1 | 1 |
| Valerie Curtin | Gloria Clooney | Marie Barclay | 1 | 1 |
| Jonelle Allen | Officer Turner | Debbie Marlin, Mrs. Mitchell | 1 | 2 |
| Barry Pearl | Mario Pellegrini | Dr. Noble | 1 | 1 |
| Dennis Lipscomb | Lawrence Pryne | Dr. Wilson | 1 | 1 |
| Janet MacLachlan | Miss Jackson | Mother Lawrence | 1 | 1 |
| Pierrino Mascarino | Joseph Banning | Mr. Clayton | 1 | 1 |
| Susan Davis | Lisa Lovell, Nurse Krewson | Receptionist | 2 | 1 |
| Danny Dayton | Harry | Art | 1 | 1 |
| Joanna Miles | Eleanor Driscoll | Mrs. Larson | 1 | 1 |
| Keith Langsdale | Mr. Dozier | Adam Pulido | 1 | 1 |
| Robert Mandan | Charlie Huntsinger | John Doe | 1 | 1 |
Cast data from TVmaze, licensed CC BY-SA 4.0.