EnglishDudley Moore as Dr Jack Hammond
Kirk Cameron as Chris Hammond
Margaret Colin as Ginnie Armbruster
Catherine Hicks as Dr Amy Larkin
Patrick O'Neal as Dr Larry Armbruster
Sean Astin as Clarence aka Trigger
Camille Cooper as Lori Beaumont
Micah Grant as Rick Anderson (Lori's boyfriend)
Bill Morrison as Trigger's Uncle Earl
Skeeter Vaughan as Medicine man
Larry Sellers as Navajo helper
Tami David as Navajo girl
Maxine Stuart as Phyllis (Hammonds' housekeeper)
David Wohl as Dr Roger Hartwood
Michael Horton as Dr Mike O'Donald
Randy Lowell as Dr Spellner
Art Frankel as Mr Racine (heart patient)
Christine Healy as Hospital Administrator
Mary Jane Courier as Operating nurse
Debbie Zipp as Nurse with dying patient
Teresa Bowman as Nurse with heart patient
Brian Peck as Intern with heart patient
Carol Swarbrick as Norma (hospital secretary)
Kedric Wolfe as Sidney (board member)
Robert Balderson as Hal Gilden (board member)
Dakin Matthews as Old Man Morrison
Les Lannom as Coach Ellis
Lorna Hill as Mrs Davis
John Stinson as Math Teacher
Bill Stevenson as Biology student
Alexandra Kenworthy as Janice Stenfield (college interviewer)
Jamison Selby as Rick's friend
Lloyd Nelson as Teacher in hall
John Tokatlian as Student
Mark McCannon as Student
Jan Duncan as Student
Armin Shimerman as Trigger's dad
Kitty Swink as Trigger's mom
Lisa Robins as Bartender
Richard Gonzales as Paperboy
James Lashly as Freemont (Corky's man)
Corki Grazer as Corky (woman in labor)
Nancy Lenehan as Waitress in desert diner
Edwin Brecht as Newborn in desert diner
Johnathan Brecht as Newborn in desert diner
Steve Plunkett as Rock concert band autograph
Randy Rand as Rock concert band autograph
Steve Lynch as Rock concert band autograph
Keni E Richards as Rock concert band autograph
Steve Isham as Rock concert and autograph
Bonnie Bedelia as Lady with gum in hair
Chris Robinson as Bobby
Jack Starrett as Coach Jennings
Carol Stoddard as Nurse in emergency room