David Victor Creator, Executive Producer Robert Young Dr. Marcus Welby Actor James Brolin Dr. Steven Kiley Actor Elena Verdugo Consuelo Lopez Actor Anne Baxter Myra Sherwood Actor Sharon Gless Kathleen Faverty Actor Anne Schedeen Sandy Porter Actor Gavin Brendan Phil Porter Actor Michael Callan Greg Robbins Guest Star Anne Jackson Alicia Blair Guest Star Murray Matheson Dr. Stoddard Guest Star Pamela Hensley Janet Blake Actor Johnny Whitaker Ricky Perino Guest Star Nancy DeCarl Lauren Blair Guest Star Lonny Chapman Joe Perino Guest Star Julian Burton Dr. Norman Halstead Guest Star Jerry Fogel Jack Kramer Guest Star Leslie Parrish Elaine Perino Guest Star Sara Seegar Mrs. Milligan Guest Star Michael Warren Jason Greer Guest Star Barbara Sigel Aide Guest Star Margaret Schneider Writer Jerome Ross Writer John Wilder Writer Theodore Apstein Writer Robert Collins Writer, Director Jerry McNeely Writer David Moessinger Writer Dick Nelson Writer Paul Schneider Writer Marc Daniels Director Jeannot Szwarc Director Leo Penn Director Paul Schneider Writer David Alexander Director Arnold Laven Director