The Brain From Planet Arous 1957 colorized (John Agar)

A powerful criminal brain from the planet Arous hijacks the body of an Earth scientist and threatens countries all over the world with destruction unless they acknowledge his rule. But another alien brain arrives to capture him, gaining the cooperation of the scientist's fiancee and her father.

John Agar as Steve March
Joyce Meadows as Sally Fallon
Thomas Browne Henry as John Fallon
Robert Fuller as Dan Murphy