All 86 actors in both Dallas and St. Elsewhere
86 actors have appeared in both Dallas and St. Elsewhere, across 493 episodes. The most-credited is Priscilla Pointer, Rebecca Wentworth in Dallas and Marie Halloran in St. Elsewhere.
| Actor | In Dallas | In St. Elsewhere | Eps | Eps |
|---|---|---|---|---|
| Priscilla Pointer | Rebecca Wentworth | Marie Halloran | 44 | 1 |
| George O. Petrie | Harv Smithfield | Joe Ewell | 38 | 2 |
| Ellen Bry | Jean Hallinan | Nurse Shirley Daniels | 3 | 20 |
| Stephen Elliott | Scotty Demarest | Manny Schecter | 12 | 8 |
| Keenan Wynn | Willard "Digger" Barnes | Charlie Heller | 10 | 1 |
| David Wayne | Willard "Digger" Barnes | Dr. George Wyler | 4 | 3 |
| David Ackroyd | Gary Ewing | Colonel Chuck Cochrane | 2 | 3 |
| Joshua Harris | Christopher Ewing | 6-Year-Old Donnie Westphall | 19 | 1 |
| Kate Mulgrew | Garnet McGee | Helen O'Casey | 1 | 2 |
| Sandy Ward | Jeb Ames | Russell | 5 | 1 |
| Gretchen Wyler | Dr. Dagmara Conrad | Joanne Jesmer | 8 | 3 |
| Ben Piazza | Walt Driscoll | Dr. Josiah Bartlett | 11 | 1 |
| Alice Hirson | Mavis Anderson | Anne Overland | 14 | 1 |
| John McIntire | Senator Sam Culver | Harry Cragen | 1 | 1 |
| Karen Austin | Dailey | Dr. Mary Woodley | 1 | 3 |
| Mary Armstrong | Louise | Mrs. Malin | 17 | 1 |
| Melody Anderson | Linda Farlow | Nurse Jill Roberts | 1 | 5 |
| Peter Horton | Wayne | Barry Dorn | 2 | 1 |
| Bill Morey | Leo Wakefield, Judge | George Reed | 8 | 1 |
| Richard Roat | Victor | Randall Sloan | 1 | 2 |
| Liam Sullivan | Mark Allen, Judge William Packer | Dr. Burt Hammond | 3 | 2 |
| Carolyn Coates | Nurse | Mrs. Fordham, Beverly Fordham | 1 | 3 |
| Rosanne Katon | Billie | Amanda Taylor | 1 | 5 |
| Jonathan Goldsmith | Joe Smith | Dr. Julius Markes | 3 | 2 |
| Barbara Tarbuck | Agnes | Agnes Najinsky | 3 | 1 |
| Joshua Bryant | Peter Larson | Dr. Bond Stevens | 1 | 1 |
| Nicholas Pryor | Nathan Billings | Prison Doctor | 3 | 1 |
| Robert Gribbin | Doctor | Paramedic | 1 | 2 |
| Sam Anderson | Investigator Frank Howard | Mr. McGrath | 2 | 1 |
| Albert Salmi | Gil Thurman | Leo Rushcom | 3 | 1 |
| Charles Lanyer | Griff | Detective Alex McGallen | 2 | 2 |
| Alan Fudge | Dr. Lantry | TBD | 2 | 1 |
| Dakin Matthews | Detective Kane | TBD | 1 | 1 |
| Harold Gould | Dr. Wexler | Melvin Millstein | 2 | 2 |
| Jill Andre | Nan Culp | Woman | 4 | 1 |
| William Windom | Amos Krebbs | Charlie Halloran | 2 | 1 |
| Virginia Kiser | Judge Roberta Fenerty | Mrs. Beardsley | 3 | 1 |
| Harry Stephens | TBD | Joe Roecklin, Technician | 1 | 2 |
| Michael Prince | John Macklin, Jonas Smithers | Rod Fields | 2 | 1 |
| James Hong | Ambassador | Mr. Wong | 1 | 1 |
| John Doolittle | TBD | TBD | 1 | 1 |
| Paco Vela | Raoul | Nurse Juan Numero, Doctor | 1 | 3 |
| Richard Chaves | Bernie | Tim Potts | 1 | 1 |
| Vernon Weddle | McGregor | Zachary Wexler | 1 | 1 |
| Bernard Behrens | Harold Haskell | George Rogers | 2 | 1 |
| Lance Guest | Student | Sean Rooney | 1 | 3 |
| Anne Gee Byrd | Dr. Jeffries | Mrs. Brennan | 2 | 1 |
| Erik Holland | Conrad Buckhouser | Dr. Sven Holstrum | 2 | 1 |
| Frances Lee McCain | Dr. Amy Rose | Mrs. Reinhardt | 2 | 1 |
| Peter Hobbs | Judge Karns | Mr. Ullman | 1 | 1 |
| Rosalind Allen | Annie Ewing | Beverly Colfax | 1 | 1 |
| Tom Babson | Mr. Archer | Reporter | 1 | 3 |
| Vivian Bonnell | District Clerk's Office Employee | Nurse Skilling | 1 | 3 |
| Bill McLaughlin | Ranch Hand | Policeman | 1 | 1 |
| Nicholas Hormann | Jim | Gerald Kingston | 1 | 1 |
| Ray Girardin | Richard Stevens | TBD | 1 | 1 |
| Walter Brooke | Cole Young | Dr. Lunden | 1 | 1 |
| John Furlong | Pilot, TBD | Sea Captain | 2 | 1 |
| Santos Morales | Cuban Leader, Post Office Clerk | Mr. Guiterrez | 3 | 1 |
| George D. Wallace | J.R.'s Accountant | Nelson | 1 | 1 |
| LaGena Hart | TBD | Patient | 1 | 1 |
| Richard Kuss | Mike Hughes | Sgt. Waczokovich | 1 | 1 |
| Stacy Keach, Sr. | Mr. Waldron, Wedding Guest | Father Sturm | 2 | 1 |
| Lewis Arquette | Dr. Ralph Kensington | Judge Ellsworth | 1 | 1 |
| Britt Leach | Mr. Sperry | Mr. Lennox | 1 | 1 |
| Charles Parks | Fred Robbins | Doctor | 1 | 1 |
| Cynthia Janos | Tanya | Muriel Brachman | 2 | 1 |
| Davis Roberts | Jesse | TBD | 1 | 1 |
| Mary Gregory | Dr. McWright's Secretary | Lillian Schecter | 1 | 2 |
| Christopher Thomas | Mailman | Dr. Hampton | 1 | 1 |
| Fran Bennett | Receptionist | Nurse Julie Attucks | 1 | 1 |
| Jennifer Harmon | Alice | Jogger | 1 | 1 |
| John Christy Ewing | Tom Fuller | TBD | 1 | 1 |
| Bruce Gray | Dr. Alan Cosby | Colonel Harvey Blackwell | 1 | 1 |
| Fred Carney | Judge Howard Mantee | Mr. Sirkin | 1 | 1 |
| Joshua Gallegos | Jungle Guide | Prisoner #06325 | 1 | 1 |
| Michael Laskin | Mr. Fletcher | Dr. Starke | 1 | 1 |
| Ernest Emling | Paramedic | Paramedic | 1 | 1 |
| Gary Bayer | Don Martin | Hank Leyburn | 1 | 1 |
| Michael Fox | TBD | Bradford Norton | 1 | 1 |
| Conrad Bachmann | TBD | Gentleman | 1 | 1 |
| Harold Ayer | Richard Leacock | Minister | 1 | 1 |
| Susan Watson | Nurse | Mrs. McClean | 1 | 1 |
| Tom Tarpey | TBD | Mr. Kotlarz | 1 | 1 |
| Al Berry | Man in J.R.'s Office #3 | Patient | 1 | 1 |
| Ellen Gerken | Aerobics Instructor | O.R. Technician | 1 | 1 |
Cast data from TVmaze, licensed CC BY-SA 4.0.