Sheik Haroun Al Raschid(Played by Kaleel Sakakeeny, 1981)
Gordon Allison (Played by Sam Stoneburner, 1981)
Amelia (Played by Lauren Kristyne, 1981)
Treat Baker (Played by Dan Marderosian, 1985–1986)
Sam Banacek (Played by Jack Palmer, 1987)
Private Detective Bauer (Played by William Gleason, 1981)
Marguerite Beaulac (Played by 
Gale Sondergaard, 1976; 
Anne Revere, 1977)
Nell Beaulac (Played by 
Diana van der Vlis, 1975–1976)
Dr. Seneca Beaulac (Played by 
John Gabriel, 1975–1985, 1988–1989)
Tiger Bennett (Played by Duncan Gamble, 1984–1985)
Dr. Evelyn Blair(Played by Pamela Burrell 1981)
Chessy Blake (Played by 
Susan Scannell, 1985)
Stanley Bosworth (Played by 
Gregory Salata, 1983)
Mitch Bronski (Played by 
James Sloyan, 1982–1983)
Sal Brooks(Played by Tony Schultz, 1981)
Zena Brown (Played by 
Tichina Arnold, 1987–1989)
Diana Buckman(Played by Liz Kemp, 1981)
Anne Burney (Played by Jody Catlin, 1976–1978)
Orson Burns (Played by Nicolas Surovy, 1981; 
Robert Desiderio, 1981–1982)
NIck Bush (Played by Richard Milanesi, 1981)Cyril Campion(Played by Bill Moor, 1981)
Diana Buckminster Carter (Played by Sally Chamberlin, 1975–1976)
Dr. Bucky Carter (Played by 
Justin Deas, 1975–1978)
Kenneth Castle (Played by Ty McConnell, 1975–1976)
Claudius Church (Played by 
Charles Cioffi, 1980)
Dr. Adam Cohen (Played by 
Sam Behrens, 1979–1980)
Dr. Ed Coleridge (Played by 
Frank Latimore, 1975–1976)
Edmund Strong Coleridge (Played by Buddy Schultz, 1977–1979)
 Dr. Faith Coleridge
Dr. Faith Coleridge (Played by Faith Catlin, 1975–1976; 
Nancy Barrett, 1976; 
Catherine Hicks, 1976–1978; 
Karen Morris-Gowdy, 1978–1983, 1989; Katherine Justice, 2 episodes, 1979)
Grace Coleridge (Played by Caroline Wilde, 1989)
Jillian Coleridge (Played by 
Nancy Addison Altman, 1975–1988, 1989)
Dr. Roger Coleridge (Played by 
Ron Hale, 1975–1989)
Olivia Coleridge (Played by Kelly & Melissa Nevins, 1987–1988; Jennifer & Katherine Ostroth, 1988–1989)
Annie Colleary (Played by 
Pauline Flanagan, 1979-?, 1987)
Sean Colleary (Played by Ralph Williams, 1979)
Silvio Conti (Played by 
Cesare Danova, 1988–1989)
Evan Cooper (Played by 
Irving Allen Lee, 1985–1989)
Matthew Crane (Played by 
Harve Presnell, 1984)
Sam Crowell (Played by Dennis Jay Higgins, 1976)
Dr. Concetta D'Angelo Ryan (Played by Lois Robbins, 1987–1988, 1989)
Mark D'Angelo (Played by Peter Love, 1986–1988)
Lily Darnell(Played by 
Christine Ebersole, 1980; Kathryn Dowling, 1980)
Mort Dash (Played by John Sudol, 1981)
Dan Davis (Played by 
George Hearn, 1978; 
Tom Mason, 1978)
Tom Desmond (Played by Thomas MacGreevy, 1977–1979)
Liam Donahue (Played by James Rogan, 1977–1978)
Teresa "Terry" Donahue (played by 
Dianne Thompson, 1979)
Diana Douglas (Played by 
Tracey Ross, 1986–1987)
Mr. Homer Dowd (Played by 
Keith Charles, 1986–1989)
Chantal DuBujak (Played by 
Marisa Pavan, 1985) Max DuBujak's Mother
Gabrielle Dubujak (Played by 
Susan Scannell, 1985)
Jacqueline DuBujak Novak (Played by 
Gerit Quealy, 1983–1985, 1987)
Max DuBujak (Played by 
Daniel Pilon, 1983–1987, 1988)
Monsignor Farrell (Played by 
William Hickey, 1985)
Beryl Feldman (Played by Anna Berger, 1979)
Dave Feldman (Played by Joseph Leon, 1977–1979; Arthur Hammer, 1979)
Nancy Feldman (Played by Lisa Sutton, 1978; Megan McCracken, 1978; 
Nana Visitor, 1978–1979)
Jack Fenelli (Played by Michael Levin, 1975–1989)
Ryan Fenelli (Played by Kerry McNamara, 1977–1980; Jenny Rebecca Dweir, 1980–1984; 
Yasmine Bleeth, 1985–1989)
Flash (Played by Melcourt Poux, 1984–1985)
Dan Fox (Played by Peter Ratray, 1979–1981)
Ethyl Franklin (Played by Alaina Reed, 1983)
Miriam George(Played by 
Rosetta LeNoire, 1977; 
Frances Foster, 1977–1978; 
Minnie Gentry, 1979)
Ramona Gonzalez, R.N. (Played by Rosalinda Guerra, 1975)
Nurse Grady(Played by Lenka Peterson 1981)
Antoine Graham(Played by Antoine Robinson, 1988–1989)
Ken Graham (Played by 
Corbin Bernsen, 1983–1985)
Ethel Green (Played by 
Nell Carter, 1978–1979)
Dave Greenberg (Played by Scott Holmes, 1984–1985)
Charlotte Greer (Played by 
Judith Chapman, 1983)
Horace Grimley (Played by Richard Woods, 1978–1979)
Emily Hall (played by Cynthia Dozier, 1987–1988)
Chris Hannold (played by Lydia Hannibal, 1986–1988, 1989)
Kimberly Harris (played by 
Kelli Maroney, 1979–1981, 1982–1983)
Hartman (Played by François Giroday, 1986)
Katherine Hayes (Played by Barbara Chase, 1981)Stamford Hutchinson (played by 
DeVeren Bookwalter, 1983–1984)
Bill Hyde (played by David Sederholm, 1983–1985)
Rick Hyde (played by 
Grant Show, 1984–1987)
 Sister Mary Joel
Sister Mary Joel (played by 
Sylvia Sidney, 1975–1976; 
Nancy Coleman, 1976; Natalie Priest, 1976–1978; 
Jacqueline Brookes, 1982; 
Rosemary Prinz, 1988–1989)
Ken George Jones(played by 
Trent Jones, 1980)
Yvonne Kaheel(Played by Patricia Triana, 1981)
Amanda Kirkland (played by 
Mary Page Keller, 1982–1983; Ariane Munker, 1983)
Catsy Kirkland (played by 
Christine Jones, 1982–1983)
Hollis Kirkland (played by 
Peter Haskell, 1982–1983)
Leigh Kirkland (played by 
Felicity LaFortune, 1983–1985, 1988–1989)
Devlin Kowalski (played by 
Leslie Easterbrook, 1985–1987)
D.J. LaSalle (played by 
Christian Slater, 1985)
Steve Latham (played by 
Franc Luz, 1984)
Craig Le Winter (Played by Paul Carlin, 1981)
Wes Leonard (played by 
David Rasche, 1978–1981)
Loraleen Lewis (played by Patti Emler, 1985–1986)
Nancy Don Lewis (played by 
Maria Pitillo, 1987–1989)
Poppy Lincoln (played by Dianne Thompson, 1979)
Polly Longworth(played by 
Molly McGreevey, 1977–1981)
Kevin MacGuinness (played by 
Malachy McCourt, 1975–1980, 1981–1982, 1983, 1988–1989)
Teddy Malcolm (played by 
David Bailey, 1988–1989)
Malachy Malone (played by 
Regis Philbin, 1987–1988)
Man in the Green Hat(Played by Harris Laskawy, 1979–1980)
Evelyn Marchero (Played by 
Renée Lippin, 1978, 1979)
Dr. Jerry Marcus(Played by Bryan Clerk, 1981)
Jumbo Marino (played by Fat Thomas, 1975–1981)
Sgt. McInerny(Played by Donald Silva, 1981)
Martha McKee(Played by 
Tovah Feldshuh, 1976; Dorrie Kavanaugh, 1977)
Dr. Alex McLean (Played by 
Ed Evanko, 1976–1977)
Father McShane (played by John Perkins, 1975–1989)
Thomas Mendenhall (played by Richard Briggs, 1981–1984, 1988–1989)
Fenno Moore (played by 
Casey Biggs, 1988–1989)
Amy Morse(played by Kaye de Lancey, 1980)
Dr. Clem Moultrie (played by Hannibal Penney, Jr., 1975–1978)
Neil Mulcahy (played by Robert Stattel, 1988)
Cicero Murphy(Played by 
Morgan Freeman, 1981)
Alicia Nieves (Played by 
Ana Alicia, 1977–1978)
Angel Nieves (Played by Jose Aleman, 1977–1978)
Joe Novak(Played by 
Richard Muenz, 1979–1980; 
Roscoe Born, 1981–1983, 1988; Michael Hennessy, 1983–1984; Walt Willey, 1986–1987)
Sean Novak (Played by 
Danny Tamberelli, 1986–1987, 1988–1989)
Laslo Novotny (Played by Fred Burstein, 1983–1985, 1986-1987)
Tiso Novotny (Played by 
David Clarke, 1979–1980)
Lori Nuzzo (Played by Ann De Salvo, 1980–1981)
Dr. Pagano(Played by David Faulkner, 1977; Gene Rupert, 1978)
Anna Pavel(Played by Joan Loring, 1979–1980)
Michael Pavel, Jr. (Played by 
Michael Corbett, 1980–1981)
Leonie Peach (Played by 
Angela Bassett, 1987)
Matt Pearse (Played by 
Tom Aldredge, 1979–1982)
Rose Pearse Melina (Played by Rose Alaio, 1980–1981)
Henry Popkin (Played by 
Fisher Stevens, 1983)
Mirabelle Posnick (Played by Ellen March, 1981)
Preston Post (Played by 
Lance Henriksen, 1980)
Sydney Price (Played by 
Robin Greer, 1983–1985)
Lawrence Prince (Played by Stefano LoVerso, 1983–1984)
Ralph Pugh(Played by 
John Rothman, 1981)
Cynthia Ramsey(Played by Lynnda Ferguson, 1981)
Harlan Ransome(Played by Drew Snyder, 1986)
Lizzie Ransome Ryan(Played by Catherine Larson, 1986–1989)
Bob Reid(Played by 
Earl Hindman, 1975–1984, 1988–1989)
 Delia Reid Ryan Ryan Coleridge Crane
Delia Reid Ryan Ryan Coleridge Crane(Played by Ilene Kristen, 1975–1979, 1982–1983, 1986–1989; Robyn Millan, 1979; 
Randall Edwards, 1979–1982; 
Robin Mattson, 1984)
Dr. James Ross(Played by James Congdon, 1978–1981)
Thatcher Ross(Played by Patrick Horgan, 1978–1979)
Georgia Rothschild(Played by Gloria Cromwell, 1975–1983)
Jonas Roving(Played by Michael Wagner, 1981)
Richard Rowan(Played by 
Lewis Arlt, 1987–1988)
Robert Rowan(played by Michael Palance, 1988–1989)
Sherry Rowan(Played by 
Diana van der Vlis, 1987–1989)
George Russell(Played by 
Lee Wallace, 1981)
Barry Ryan(Played by 
Richard Backus, 1980–1981)
Elizabeth Jane "E.J." Ryan(Played by 
Maureen Garrett, 1981–1982)
Elizabeth Shrank Ryan(Played by 
Pamela Blair, 1980)
 Francis "Frank" Ryan
Francis "Frank" Ryan(Played by Michael Hawkins, 1975–1976; 
Andrew Robinson, 1976–1978; 
Daniel Hugh Kelly, 1978–1981; 
Geoffrey Pierson, 1983–1985; John Sanderford, 1985–1989)
Johnny Ryan(Played by Bernard Barrow, 1975–1989)
John Reid Ryan(Played by 
Jadrien Steele, 1975–1985; 
Jason Adams, 1986–1989)
Cathleen Ryan Thompson (Played by Nancy Reardon, 1976–1980)
Maeve Colleary Ryan(Played by Helen Gallagher, 1975–1989)
Mary Ryan Fenelli(Played by Kate Mulgrew, 1975–1978, 1983, 1986, 1989; Mary Carney, 1978; Kathleen Tolan, 1978–1979; 
Nicolette Goulet, 1979).
Mary Ryan (as a child)(Played by Yvette Deas, 1977)
Owen "Owney" Ryan(Played by Jamie O'Neill, 1987–1989)
Dr. Patrick Ryan(Played by Malcolm Groome, 1975–1978, 1983–1988, 1989; John Blazo, 1978–1979; Robert Finoccoli, 1979; Patrick James Clarke, 1982–1983)
Siobhan Ryan Novak(Played by Sarah Felder, 1978–1980; 
Ann Gillespie, 1981–1982; 
Marg Helgenberger, 1982–1986; Carrell Myers, 1986–1987; Barbara Blackburn, 1988–1989)
Chaz Saybrook (Played by Brian McGovern, 1987–1989)
Catie Schall (Played by Elaine Bromka, 1987)
Marian "Schultzie" Schultz (Played by Vera Lockwood, 1980–1982)
Mrs. Shaw(Played by Betty Low, 1981)
Ben Shelby (aka Ben Shelley) (Played by 
James Wlcek, 1987–1989)
Bess Shelby (Played by 
Gloria DeHaven, 1983–1987)
Maggie Shelby (Played by 
Cali Timmins, 1983–1988, 1989)
Pru Shephard (Played by 
Traci Lin, 1984–1985)
Betty Sherman (Played by Betty Alley, 1985–1986)
Eliot Silverstein (Played by 
Joe Silver, 1980)
Howard Slavin(Played by 
David Gale, 1981)
Constance Small, R.N. (Played by 
Ethel Ayler, 1980–1981)
Dakota Smith (Ryan) (Played by Christopher Durham, 1985–1988)
Spencer Smith(Played by 
Lester Rawlins, 1981)
Samuel Addison Snow(Played by John Seitz, 1979)
Sgt. Jim Speed (Played by MacKenzie Allen, 1981–1982)
Matthew Strand (Played by 
Steve Fletcher, 1988–1989)
Nick Szabo (Played by 
Michael Fairman, 1975–1976, 1977)
Serena "Reenie" Szabo (Played by 
Julia Barr, 1976)
Dr. Gloria Tassky (Played by 
Francine Tacker, 1985)
Pamela Thatcher(Played by Ellen Barber, 1981)
Art Thompson (Played by Gregory Abels, 1976)
Deirdre Thompson (Played by Rachel Robinson, 1976)
Katie Thompson (Played by Lauren O'Bryan, 1984; 
Julia Campbell, 1984–1985)
Daniel Thorne (Played by 
Chip Zien, 1981)
Alexei Vartova (Played by 
Dominic Chianese, 1981; 
Leonardo Cimino, 1982)
Detective Vaughan (Played by Mark Werheim, 1987–1988)
Vinnie Vincent (Played by 
Sherman Howard, 1986–1987)
Denny Walston (Played by Lauren K. Woods, 1985–1986)
Melinda Weaver Ryan (Played by 
Nancy Valen, 1985–1987)
Marshall Westheimer (Played by William Kiehl, 1975–1983; Robert Burr, 3 episodes 1977-1979)
Aristotle Benedict White(Played by 
Gordon Thomson, 1981–1982)
Barbara Wilde (Played by 
Judith Barcroft, 1981–1982; Delphi Harrington (1981))
Nurse Williams(Played by Anne Churchill, 1981)
Jeremy Winthrop(Played by Herb Anderson, 1984–1985)
Bill Wolfston (Played by Seth Allen, 1981; Stephen Vinovich, 1981)
Perry Wood(Played by Frank Biancamano, 1981)
Rae Woodard(Played by 
Louise Shaffer, 1977–1984, 1989; Judith McGilligan, May 1978)
William Price Woodard (Played by 
Wesley Addy, 1977–1978)