Det. Sgt. Mark Brewster — Shield for Murder Character Profile

About Det. Sgt. Mark Brewster

Barney's protégé and fellow detective. Initially loyal and trusting, he discovers the written testimony of a deaf-mute witness, investigates Barney's cover-up, confronts him, survives a brutal attack, and ultimately helps bring him down.

Character Facts

Played by

John Agar

Appears in

Shield for Murder (1954)

Role

Supporting

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• Det. Lt. Barney Nolan (Edmond O'Brien)
• Patty Winters (Marla English)
• Capt. Gunnarson (Emile Meyer)
• Gambler Being Booked (John Beradino)
• Beth, Girl at Bar (Carolyn Jones)
• Fat Michaels (Claude Akins)
• Detective O'Dell (Stafford Repp)
• Detective (Robert Bray)
• Joe the Bartender (Vito Scotti)
• Laddie O'Neil (Lawrence Ryle)
• Cabot, Reporter (Herbert Butterfield)
• Packy Reed (Hugh Sanders)