Trailer
Cast
- Oliver Reed as Dr. Henry Heckyl
- Oliver Reed as Mr. Hype
- Sunny Johnson as Coral Careen
- Maia Danziger as Miss Finebum
- Virgil Frye as Lt. Mack Druck - 'Il Topo'
- Mel Welles as Dr. Vince Hinkle
- Kedrick Wolf as Dr. Lew Hoo
- Jackie Coogan as Sgt. Fleacollar
- Corinne Calvet as Pizelle Puree
- Sharon Compton as Mrs. Quivel
- Denise Hayes as Liza Rowne
Crew
- Charles B. Griffith · Director
- Charles B. Griffith · Writer
- Yoram Globus · Producer
- Menahem Golan · Producer
- Richard Band · Composer
- Robert Primes · Cinematographer
- Skip Schoolnik · Editor
- Ann Bell · Casting director
- Max Mendes · Production designer