Kate McNeil as Katherine

Eileen Davidson as Vicki

Janis Ward as Liz

Robin Meloy as Jeanie

Harley Jane Kozak as Diane

Jodi Draigie as Morgan

Ellen Dorsher as Stevie

Lois Kelso Hunt as Mrs. Slater

Christopher Lawrence as Dr. Beck

Michael Kuhn as Peter

Michael Sergio as Rick

Ruth Walsh as Mother

Ed Heath as Policeman

Jean Schertler as Nurse

Larry Singer as Photographer

Carlos Sério as Eric

Peter McClung as Peter

Peter McClung as Peterson

Mark Rosman as Party Guest Playing the Piano (uncredited)

Kenny Myers as Murdered Guest

Ruth Moss as Freshman Girl #1

Hilary Crowson as Freshman Girl #2

Nanna Ingvarsson as Freshman Girl #3