John Saxon
Dr. Theodore Stuart (45 eps)
Julie Adams
Lynn Craig (45 eps)
E.G. Marshall
Dr. David Craig (45 eps)
David Hartman
Dr. Paul Hunter (45 eps)
Kay Peters
Dr. Blythe Collier (2 eps)
Jane Wyman
Dr. Amanda Fallon (2 eps)
Virginia Gregg
Nurse Anne Turner (2 eps)
Eve Brent
2nd Nurse (2 eps)
Linda Dangcil
Elena Rodrigues (2 eps)
JoAnna Cameron
Jan Speiser (1 eps)
Berkeley Harris
Dr. Hal Coulter (1 eps)
Della Reese
Grace Dayton (1 eps)
Eric Laneuville
Bruce Dayton (1 eps)
Edward Faulkner
Dr. Hill (1 eps)
Paul Gleason
Smith (1 eps)
Len Lesser
Joe Boland (1 eps)
Ray Ballard
Maxie (1 eps)
Mike Farrell
Dr. Vic Wheelwright (1 eps)
Ron Howard
Cory Merlino (1 eps)
Robert Hogan
Jack Merlino (1 eps)
Philip Brown
Scotty Merlino (1 eps)
Lynnette Mettey
Dee Merlino (1 eps)
Leslie Nielsen
Mr. Cummings (1 eps)
Kathleen Nolan
Carol Steadman (1 eps)
Miko Mayama
Irene Watanabe (1 eps)
Bennye Gatteys
2nd Night Nurse (1 eps)
Jason Bernard
Dr. Griffith (1 eps)
Michael Lerner
Parelli (1 eps)
Roy Engel
1st Doctor (1 eps)
Stuart Randall
2nd Doctor (1 eps)
Harry Harvey
Elderly Heart Patient (uncredited) (1 eps)
Harold J. Stone
Harry Miller (1 eps)
Pernell Roberts
Dr. Frank Bartell (1 eps)
Carmen Zapata
Rosa Villacres (1 eps)
James B. Sikking
1st Reporter (1 eps)
Joanne Linville
Anne Sorenson (1 eps)
Arch Johnson
Frank Sorenson (1 eps)
Lincoln Kilpatrick
Gil Dodds (1 eps)
Anne Whitfield
Milly (1 eps)
Pat Crowley
Helen Johnson (1 eps)
Louis Gossett Jr.
Dr. Karnes (1 eps)
McLean Stevenson
George Caldwell (1 eps)