All 118 actors in both Matlock and St. Elsewhere
118 actors have appeared in both Matlock and St. Elsewhere, across 314 episodes. The most-credited is Bonnie Bartlett, Lorraine Maslin in Matlock and Ellen Craig in St. Elsewhere.
| Actor | In Matlock | In St. Elsewhere | Eps | Eps |
|---|---|---|---|---|
| Bonnie Bartlett | Lorraine Maslin | Ellen Craig | 1 | 36 |
| Barbara Whinnery | Anna Moore, Arlene, Doreen Ferguson | Dr. Cathy Martin | 4 | 32 |
| Herb Edelman | Arthur Rydell | Richard Clarendon | 1 | 18 |
| Jean Bruce Scott | Sylvia Richland | Roberta Sloan | 2 | 8 |
| Nancy Stafford | Caryn Nelson / Caroline Nathan | Joan Halloran | 1 | 7 |
| Philip Sterling | Kenneth Roberts, Prosecutor, Thomas Freemont | Dr. Simon Weiss | 3 | 9 |
| Gerald Hiken | Dr. Vincent Redding | Robin Baskins | 1 | 3 |
| James McEachin | Police Lt. Frank Daniels, Hollis Greeley | Harris Jeffries | 7 | 1 |
| Richard Gilliland | Jeffrey Spidell, Gil Stoddard | Mr. Fitzsimmons | 3 | 1 |
| Bill Macy | Sid Franklin | Hershel Millstein | 1 | 2 |
| Richard Roat | Ross Bailey | Randall Sloan | 1 | 2 |
| John Schuck | Reporter Carl Burke | Andrew Wegener | 1 | 4 |
| Michael Goodwin | Mr. Chase, Richard Gavin, Ross Buckley | Dr. Christopher Rant | 3 | 3 |
| Pat Hingle | Tom McCabe | Walter Schaeffer | 1 | 1 |
| Piper Laurie | Claire Leigh | Fran Singleton | 1 | 3 |
| Rosalind Allen | Linda Michaels | Beverly Colfax | 1 | 1 |
| Ben Slack | Marty Lynch, Sgt. Parker | Louie, Mr. Samrock | 2 | 2 |
| Brian McNamara | Gary Adler | Michael Endicott | 1 | 3 |
| Tom Henschel | Rob Casey, Eugene Dobbs | Maintenance Man Kyle | 3 | 4 |
| Nick DeMauro | Charlie | Jake | 7 | 1 |
| Alan Fudge | Paul Davies, Jack Sylvester, John Brady | TBD | 4 | 1 |
| Alan Oppenheimer | Dr. Linder | Ira Rosenthal | 1 | 2 |
| Ben Piazza | Dr. David Westlake, Martin Landers | Dr. Josiah Bartlett | 2 | 1 |
| Betty White | Betty White | Captain Gloria Neal | 1 | 2 |
| Dakin Matthews | Prosecutor | TBD | 1 | 1 |
| Jack Dodson | William Austin | Judge Farnham | 1 | 3 |
| Joe Regalbuto | Arthur Prescott | Attorney Michaelson | 1 | 1 |
| Patrie Allen | Cathy Gordon | Janet Singleton | 1 | 2 |
| Peter Michael Goetz | Steven Abbot | Dr. Larry Andrews | 1 | 1 |
| William Schallert | Judge Elliot Franklin | Dr. Olan Standley | 1 | 1 |
| H. Richard Greene | Clark Benson, George Mitchell, Ron Welker | James Moynihan | 3 | 1 |
| Henry G. Sanders | Mitchell Sands, Pat Gaines | Guard Neil Baldwin | 3 | 1 |
| James Sutorius | Gil Altman, Roger Herman | Sam Hendrix | 2 | 2 |
| Andy Romano | D.A. Farina | Bob Overland | 1 | 2 |
| Charles Cioffi | Roger Anderson | Senator Gordon Endicott | 1 | 2 |
| Jill Andre | Deputy D.A. Hudson, Mrs. Johnson | Woman | 2 | 1 |
| Michael Halsey | Arthur Wolff, Charles Beckman | Harold Beaumont | 2 | 1 |
| Anne Haney | Aunt Elsie Carter, Elizabeth Farrell, Nurse Jackson | Mrs. Clifford | 3 | 1 |
| Brenda Strong | Jan Sinclair | Nadine Aurora | 1 | 1 |
| Fran Bennett | Betty Harding | Nurse Julie Attucks | 1 | 1 |
| James Stephens | Dr. Duncan Farmington | Young Dr. Daniel Auschlander | 1 | 1 |
| Joel Polis | Gary Benton | Jeff Hassett | 1 | 1 |
| Kathleen Lloyd | Andrea Morrow | Lorraine | 1 | 1 |
| Nicholas Pryor | Dr. Paul Dodge | Prison Doctor | 1 | 1 |
| Paul Lieber | Bobby Michaelson | Arrested Suspect | 1 | 1 |
| Rhea Perlman | Rhea Perlman | Carla Tortelli | 1 | 1 |
| Charles Lanyer | Martin Washburn | Detective Alex McGallen | 1 | 2 |
| Christopher Allport | Nick Underwood | Mr. Kent | 1 | 2 |
| James O'Sullivan | Carter Weston, Frank Larson | Dr. Robinson | 2 | 1 |
| Mary-Margaret Lewis | Secretary, Woman | Nurse Lynn Thornton | 2 | 4 |
| Wendy Phillips | Paula Campbell | Diane Hassett | 2 | 1 |
| Arthur Taxier | Agent Alan Pierce | Dr. Morton Chegley | 2 | 2 |
| Jeff Allin | Brian Lane, Ken Wilson | Alex Corey | 2 | 3 |
| Will Jeffries | Asst. D.A. Ferber, Jeff Lindquist | Frank Ashman | 4 | 1 |
| Beau Starr | Chuck | Chuck DeMita | 1 | 1 |
| Conchata Ferrell | Mrs. Reese | Gina Barnett | 1 | 1 |
| Diane Delano | Dodo the Clown | Nurse | 1 | 1 |
| Earl Boen | Judge George Clayton, Patrick Morrison | Walter Lankau | 2 | 1 |
| Eric Christmas | Old Witness | Jersey Piker | 2 | 1 |
| Ford Rainey | Judge Donald Powell | Doc Bogert | 2 | 1 |
| Heather McAdam | Carol Thompson | Sandy Malin | 1 | 1 |
| Jason Bateman | Jason Bateman | Tim Moynihan | 1 | 1 |
| Jo de Winter | Ruth Delaney | Iris York, TBD | 1 | 2 |
| Richard Kuss | Gerald O'Hara | Sgt. Waczokovich | 1 | 1 |
| Seth Isler | Karl Sheply | Russ Butler | 2 | 2 |
| Steve Eastin | Steve Miller | Detective Thibideaux | 1 | 1 |
| Tracy Nelson | Jessie Morgan | Jennifer Milbourne | 1 | 1 |
| John Dennis Johnston | Brian Martell, Lucas Anderson | Nick Moats | 2 | 1 |
| Kip Gilman | Dr. David Campbell, Sonny Hutton | Dr. Duncan Harper | 2 | 1 |
| Michael Ensign | Doctor, Spaulding Kane | Proctor | 2 | 1 |
| Arnold F. Turner | Officer Green | Policeman | 1 | 1 |
| Eugene Williams | Attendant #2 | Drug Dealer | 1 | 1 |
| Juanita Jennings | Assistant | TBD | 1 | 1 |
| Julie Cobb | Janice Pearson | Mrs. Moynihan | 1 | 1 |
| Raye Birk | Simon Le Simple | TBD | 1 | 1 |
| Steven Eckholdt | Mark Carter | Dino Pirelli | 1 | 1 |
| Beah Richards | Martha Jordan | Regina | 1 | 1 |
| Charles Tyner | E.J. Metcalf | Christopher Seamus Payne | 1 | 1 |
| Curt Lowens | Hotel Clerk | TBD | 1 | 1 |
| John Zarchen | Jordan Sanders | TBD | 1 | 1 |
| Laurie O'Brien | Barbara Warren | Mrs. Morgen | 1 | 1 |
| Linda Kelsey | Ellen Barrett | Cape Resident | 1 | 1 |
| Raymond Singer | Leonard Gilbert | Al Kleckner | 1 | 1 |
| Suzanne Kent | Mona Hutchinson | Nurse Pam Krassel | 1 | 2 |
| Peter Van Norden | Nick Saddler | Bill Fulkerson, Patient | 1 | 2 |
| David Ruprecht | Salesman | Dennis Coler | 1 | 1 |
| Dierk Torsek | Dr. Lyden | Dr. Ronald Bedder | 1 | 1 |
| Howard George | Phillip Tracey | Detective Enright | 1 | 1 |
| Jack Heller | Randall Brooks | Paul | 1 | 1 |
| Joshua Bryant | Dave Edwards | Dr. Bond Stevens | 1 | 1 |
| Bruce Wright | Janitor | Paramedic | 1 | 2 |
| Bruce Gray | James Hamilton, Mr. Geese | Colonel Harvey Blackwell | 2 | 1 |
| Conrad Bachmann | David Cabot | Gentleman | 1 | 1 |
| Joe George | Judge | Policeman | 1 | 1 |
| Marilyn Jones | Anne Johnson | Allyson Gladden O'Casey | 1 | 1 |
| Greg Monaghan | Jeweler | Paramedic Eddie D'Arata | 1 | 1 |
| John Christy Ewing | Richard Ward | TBD | 1 | 1 |
| Lewis Arquette | 2nd Commissioner | Judge Ellsworth | 1 | 1 |
| Martin Azarow | Proprietor | Fat Man | 1 | 1 |
| Oceana Marr | Esther Scully | Margaret Kimbrough | 1 | 1 |
| Jack Murdock | Security Guard | Professor | 1 | 1 |
| John Sanderford | Chuck Ratner | Barry Mallory | 1 | 1 |
| Michael Laskin | Atlanta A.D.A. | Dr. Starke | 1 | 1 |
| Ralph Drischell | Janitor | Dr. Arnold Lesse | 1 | 1 |
| Stan Ivar | Congressman Pete McGuiness | Don Bundy | 1 | 1 |
| Billy Ray Sharkey | Inmate | Cowboy | 1 | 1 |
| Ken Magee | Meter Reader | Repairman | 1 | 1 |
| Elyse Donalson | Judge Harper | Sister Agnes Claire | 1 | 1 |
| Hanna Landy | Sarah Luzinsky | Caterer | 1 | 1 |
| Hartley Silver | Horton Garrett | Man in Chapel | 1 | 1 |
| Lew Horn | Security Guard | Mr. Hildreth | 1 | 1 |
| Nick Savage | Calvin Sykes | Speedball | 1 | 1 |
| Sandy Martin | Manager | Mrs. Lawson | 1 | 1 |
| Tom Tarpey | Motel Manager | Mr. Kotlarz | 1 | 1 |
| Milt Tarver | Reporter #2 | Dr. Phillip Laceo | 1 | 1 |
| Stacy Keach, Sr. | Judge Sam Crothers | Father Sturm | 1 | 1 |
| B.J. Ward | Bernice Wooley | Mrs. Elway | 1 | 1 |
| James Arone | Narc #1 | Guy Rizzo | 1 | 1 |
Cast data from TVmaze, licensed CC BY-SA 4.0.