Characters played by Victoria Principal
Anna Forbes
Characters played by Nicholas Campbell
Mark Forbes
Characters played by Dawn Greenhalgh
Martha
Characters played by Geraint Wyn Davies
Dr. Lambert
Characters played by Kenneth Welsh
Dr. Bell
Characters played by Robert Vaughn
Dennis Forbes
Characters played by Sheila Brand
Walker
Characters played by Maggie Huculak
Larson
Characters played by Marcia Bennett
Nurse Susan
Characters played by Anna Louise Richardson
Elaine
Characters played by Michael Dyson
Jesse
Characters played by George R. Robertson
Whalen
Characters played by Jenna Preston
Little Dancer
Characters played by John Bekavac
Orderly
Characters played by Wayne McNamara
Deputy
Characters played by Robert Wagner
(uncredited)