Howard R. Cohen Director, Screenwriter Richard Benjamin John Actor Paula Prentiss Mary Actor Severn Darden Van Helsing Actor Jeffrey Tambor Waldemar Actor Kari Michaelson Debbie Actor Kevin Brando Billy Actor Rosemary DeCamp Aunt Lucille Actor Nancy Lee Andrews Yolanda Actor Carol Androsky Marge Actor Patrick Campbell Mailman (uncredited) Actor Roberta Collins Cousin Rhonda Actor Paul Garner The Major Actor Stacy Keach Sr. Attorney Actor Michael Miller Ernie Muldowney Actor Thomas Newman Cousin Phil Actor Annie O'Donnell Annette Muldowney Actor Irwin Russo Truck Driver Actor Jeff Begun Producer Julie Corman Producer Daniel Lacambre Cinematographer Kent Beyda Film Editing Joanne D'Antonio Film Editing Parmer Fuller Original Music Arlene Alen Production Design, Art Director John Wright Set Decoration