All 101 actors in both Highway to Heaven and St. Elsewhere
101 actors have appeared in both Highway to Heaven and St. Elsewhere, across 245 episodes. The most-credited is Herb Edelman, Dr. Cohn in Highway to Heaven and Richard Clarendon in St. Elsewhere.
| Actor | In Highway to Heaven | In St. Elsewhere | Eps | Eps |
|---|---|---|---|---|
| Herb Edelman | Dr. Cohn | Richard Clarendon | 2 | 18 |
| Chad Allen | Ricky Diller | Tommy Westphall | 1 | 15 |
| Karen Landry | Diane James | Myra White | 1 | 12 |
| Helen Hunt | Lizzy MacGill | Clancy Williams | 2 | 8 |
| Stephen Elliott | Mr. Armstrong | Manny Schecter | 2 | 8 |
| Richard Marcus | Baldwin | Ralph Selover | 1 | 6 |
| Dorothy McGuire | Jane Thompson | Augusta Endicott | 3 | 3 |
| Andy Romano | Caz | Bob Overland | 3 | 2 |
| Bill Macy | Max, Vincent DeGeralimo | Hershel Millstein | 2 | 2 |
| Ramon Bieri | Sheriff Harm | Gene Galecki | 1 | 3 |
| Anne-Marie Martin | Linda Blackwell | Mrs. Dowd | 2 | 1 |
| Ben Slack | Warren Sherman | Louie, Mr. Samrock | 1 | 2 |
| Brian Kerwin | Barry Rudd | Terence O'Casey | 1 | 2 |
| K Callan | Mrs. Lowell | Patty Galecki | 1 | 2 |
| Joshua Bryant | Caz | Dr. Bond Stevens | 1 | 1 |
| Peggy Pope | Marge Davis | Grace | 1 | 1 |
| William Windom | Reverend Stearns | Charlie Halloran | 1 | 1 |
| John Hammond | Garth Armstrong | Michael Duffy | 2 | 5 |
| Alan Fudge | Alan Peterson, Mr. McCormick | TBD | 2 | 1 |
| Barney Martin | Barney | Mr. Duffy | 1 | 2 |
| Conrad Janis | C.J. Barabbas | Prosecuting Attorney | 1 | 2 |
| Henry G. Sanders | Reverend Blake, Wm. Pierson | Guard Neil Baldwin | 2 | 1 |
| Patrie Allen | Young Phoebe Hall | Janet Singleton | 1 | 2 |
| Peggy McCay | Louise | Claire Fields | 1 | 2 |
| William Schallert | Grandpa Raines | Dr. Olan Standley | 2 | 1 |
| Al Ruscio | Petros | Raleigh, Mr. Morlin | 1 | 3 |
| Christine Healy | Lisa Bradley | Katie Ewell | 2 | 2 |
| David Ackroyd | Commander Matthew Rogers | Colonel Chuck Cochrane | 1 | 3 |
| Akosua Busia | Vanessa Livingston | Debra Etting | 1 | 1 |
| Beau Starr | Vince DIller | Chuck DeMita | 1 | 1 |
| Fran Bennett | Flora | Nurse Julie Attucks | 1 | 1 |
| Hartley Silver | Cook, Mailman | Man in Chapel | 2 | 1 |
| Jerry Supiran | Adam | Matthew Auschlander | 1 | 1 |
| Robert Jayne | Brock Gaylord | Stan Morgen, Jr. | 1 | 1 |
| H. Richard Greene | Jim Bradley, Sgt. Major Travis Hastings | James Moynihan | 3 | 1 |
| Murray Rubin | Man | Murray Robbin | 1 | 3 |
| David Sage | Coleman Charnin, Mr. Dolan | Surgeon | 2 | 1 |
| Liam Sullivan | Wilson | Dr. Burt Hammond | 1 | 2 |
| Stan Ivar | Paul Raines | Don Bundy | 2 | 1 |
| Todd Susman | Mr. Carlyle | Victor Bevine | 1 | 2 |
| Tom Henschel | Hospital Attendant | Maintenance Man Kyle | 1 | 4 |
| Bernard Behrens | Dr. Sheaffer | George Rogers | 1 | 1 |
| Danny McMurphy | Larry Payne | Max Auschlander | 1 | 1 |
| Eda Reiss Merin | Maria Malinoff | Mrs. Gustas | 1 | 1 |
| Elizabeth Kerr | Miss Mattie | Aunt Sirca | 1 | 1 |
| Gary Bayer | Paul Sanders | Hank Leyburn | 1 | 1 |
| Jean Allison | Gwen Halstead | Marie Benzinger | 1 | 1 |
| R.J. Williams | Joey | Tim Perry | 1 | 1 |
| Joel Colodner | Driver | Sam Borgman | 1 | 2 |
| Jonathan Goldsmith | Fitzroy | Dr. Julius Markes | 1 | 2 |
| Keenan Wynn | Doc Brisby | Charlie Heller | 1 | 1 |
| Lee Bryant | Sarah Down | Dr. Francine Kennedy | 1 | 1 |
| Norman Burton | Captain Friend | Monsignor | 1 | 1 |
| Theresa Karanik | Anne Keller | Cashier | 1 | 1 |
| Virginia Capers | Miss Hendrickson | Admit Clerk | 2 | 1 |
| Vivian Bonnell | Louise | Nurse Skilling | 1 | 3 |
| Beah Richards | Mrs. Baldwin | Regina | 1 | 1 |
| Charles Tyner | Caleb Fish | Christopher Seamus Payne | 1 | 1 |
| Cory Yothers | Boy | Joe Dempsey | 1 | 1 |
| David Friedman | Kevin | 10-Year-Old Terence O'Casey | 1 | 1 |
| Guy Killum | Albert | Lexie | 1 | 1 |
| K.C. Martel | Larry Everett | Vinnie | 1 | 1 |
| Kip Gilman | Maxim Prince | Dr. Duncan Harper | 1 | 1 |
| Mary Armstrong | Martha | Mrs. Malin | 1 | 1 |
| Vernon Weddle | Mr. Arnold | Zachary Wexler | 1 | 1 |
| Jessica Drake | Sharon Winner, Agnes | Reporter | 3 | 1 |
| Richard Jamison | Frank, Gate Man | Cop, Security Guard | 2 | 2 |
| Conrad Bachmann | Robert Halberstrom | Gentleman | 2 | 1 |
| David Faustino | Robbie Down | Boy | 1 | 1 |
| David Wiley | Guard, Motel Manager | Mr. Prensky | 2 | 1 |
| Eve Roberts | Carlotta | Margaret Domedion | 1 | 1 |
| Eve Smith | Old Lady | Lady in Lobby | 1 | 1 |
| Jaclyn Bernstein | Myra | Betty | 1 | 1 |
| Joe George | Mr. Harvey | Policeman | 1 | 1 |
| John Zarchen | Young Clarence | TBD | 1 | 1 |
| Mary Gregory | Mrs. Butler | Lillian Schecter | 1 | 2 |
| Penny Santon | Grandma Rizzo | Frannie Catalano | 1 | 1 |
| Kenneth Lloyd | Al, Orderly #1 | Reporter | 2 | 1 |
| Ralph M. Clift | Track Teller, Walter Cousins | Maurice | 2 | 1 |
| Lillian Adams | Miss Willens | Mrs. Rizzo | 1 | 1 |
| Robert Hackman | Cabby, Man #1 | Plumber | 2 | 1 |
| Andre Gower | Tom Barney | Tucker | 1 | 1 |
| Judy Jean Berns | Bonnie (age 37), Woman | Mrs. Kotlarz | 2 | 1 |
| Le Tuan | Mr. Loh | Mr. Nguyen | 1 | 1 |
| Marilyn Jones | Woman #2 | Allyson Gladden O'Casey | 1 | 1 |
| Milt Tarver | Police Chief | Dr. Phillip Laceo | 1 | 1 |
| Perry Cook | Bum #2 | Janitor | 1 | 1 |
| Bob Lee | Man, Technical Director | Man on Airplane | 2 | 1 |
| Ed Hooks | Clerk | Mr. Gaudet | 1 | 1 |
| Kate Randolph Burns | Miss Swann | Sandra Eff | 1 | 1 |
| Michael Laskin | Gil Scott | Dr. Starke | 1 | 1 |
| Barbara Tarbuck | Marie Briggs | Agnes Najinsky | 1 | 1 |
| Dan Verdin | Bellhop | Millworker | 1 | 1 |
| Noelle Harling | Grace | Susan | 1 | 1 |
| Phil Proctor | Phil | TBD | 1 | 1 |
| John Furlong | Charles | Sea Captain | 1 | 1 |
| Viola Kates Stimpson | Sylvia | Mrs. Konover | 1 | 1 |
| John Howard Swain | Gordon Hays | Dr. Alvin Sterns | 1 | 1 |
| John Ross | Mr. Markham | Paul Dunning | 1 | 1 |
| Ellen Gerken | Reporter | O.R. Technician | 1 | 1 |
| Christopher M. Brown | Maurice | Eugene | 1 | 1 |
← Highway to Heaven × St. Elsewhere
Cast data from TVmaze, licensed CC BY-SA 4.0.