Elenco

• Phyllis Thaxter — Gladys Mitchell
• Robert Keith — Dr. Garson Lee
• Walter Matthau — Dr. Spinelli
• Patricia Bruder — Barbara Mitchell
• Patty McCormack — Ginny Mitchell
• Audrey Christie — Mrs. Moore
• William Kemp — Jim Turner
• Elizabeth Ross — Mrs. Harvey
• Daniel Reed — Mr. Flood
• Virginia Gerry — Nancy
• John Charles Daly — Conelrad Announcer

Argumento

• David Davidson — teleplay
• Judith Merril — novel

Produção

• Herbert Brodkin — producer

Realização

• Ralph Nelson — director