Curtis Harrington Director Debbie Reynolds Adelle Bruckner Actor Shelley Winters Helen Hill Actor Dennis Weaver Lincoln Palmer Actor Micheál MacLiammóir Hamilton Starr Actor Agnes Moorehead Sister Alma Actor Helene Winston Mrs. Greenbaum Actor Peggy Rea Mrs. Schultz Actor Yvette Vickers Mrs. Barker Actor Henry Farrell Writer George Edwards Producer Edward S. Feldman Executive Producer James C. Pratt Associate Producer Matty Malneck Original Music David Raksin Original Music Johnny Mercer Non-Original Music Lucien Ballard Cinematographer William Reynolds Film Editing Eugène Lourié Art Director Jerry Wunderlich Set Decoration Morton Haack Costume Design Caro Jones Casting