William Hopper is a familiar face in classic Hollywood, best remembered for his sharp turn as private detective Paul Drake in the television series Perry Mason. Before television fame, Hopper made his mark in genre films of the 1950s, like the sci-fi thrillers 20 Million Miles to Earth and The Deadly Mantis, where his grounded performances helped sell fantastic stories with a touch of everyman realism. He also appeared in John Huston’s iconic film noir The Maltese Falcon, contributing to one of cinema’s most enduring mysteries. Hopper’s ability to bring subtle intelligence and charm to his roles made him a reliable presence, especially in crime and suspense pictures. Fans appreciating mid-century genre classics will find his work rewarding to explore.