
These “girls” are tough! When private detective Bob Martin looking for a stolen diamond necklace, he also has a clever serial killer on the trail …
Does Death Knocks Twice have end credit scenes?
No!
Death Knocks Twice does not have end credit scenes. You can leave when the credits roll.
Explore the complete cast of Death Knocks Twice, including both lead and supporting actors. Learn who plays each character, discover their past roles and achievements, and find out what makes this ensemble cast stand out in the world of film and television.

Adolfo Celi
"der Professor"

Mario Brega
Riccardo

Anita Ekberg
Sophia Ferretti

Leon Askin
Peppe Mangano

Werner Peters
Charly Hollmann

Riccardo Garrone
Armando Locatelli

Fabio Testi
Francesco di Villaverde

Femi Benussi
Lois Simmons

Renato Baldini
Lionel Simmons

Nadja Tiller
Maria di Villaverde

Dean Reed
Bob Martin

Tom Felleghy
Berry

Teodoro Corrà
Rinaldo

Bruno Ariè
Charly's Henchman

Antonietta Fiorito
(credit only)

Hélène Chanel
Angela

Ini Assmann
Ellen Kent

Marlies Petersen
Babsie

Lanfranco Cobianchi
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