Daniel
Jennifer
Herbie
Ernie
Timothy
Thomas
Jennifer's Mother
Arlene
Dr. Willoughby
Adele
Dr. Goodwin
Phyllis
Dr. Phillips
Hospital Bus Driver
Ralph
Nurse #1
Third Retard from the left
Pianist
Attendant
Dave's Wife
Truck Driver
Nurse #3
George
Angry Man
Messenger
Patient (as Dennis C. Ott)
Nurse #2
Mitchell
Self
Dave
Switch Board Operator
Patient (uncredited)