A native of Wroclaw, Poland, Martin started his career as an international sportswriter, broadcaster and author, spending two decades covering NBA games and publishing two acclaimed books on basketball. It was during this time that he met the late Kobe Bryant, who encouraged him to follow his passion for performance.

Inspired by that advice, and an obsession with classic films, James Bond thrillers, and the work of Robert De Niro, Martin began training as an actor in his 30s, studying intensively at the Stella Adler Theater and the Beverly Hills Playhouse.

He officially made the leap to full-time acting in his early 40s and quickly built an impressive resume, appearing in hit series like Stranger Things (Netflix), The Marvelous Mrs. Maisel (Amazon), Better Call Saul (AMC), and Young Sheldon (CBS). His film credits include James Gunn's reboot of Superman, Amsterdam, The Gray Man, The Hunt, and Red Notice, where he played a prison tower sharpshooter. He's also recognized for his villainous turn as Lt. Nikolai Zybulski in TNT's post-apocalyptic series The Last Ship.

In addition to his on-camera work, Martin does significant voice work for computer and video games, most notably as fan-favorite "Krueger" in the Call of Duty video game franchise. A lifelong rock music fan, he once fronted a heavy metal band in Poland called Army of Darkness. He's also an avid art collector, with a particular interest in South American contemporary art and 18th-century English portraiture.

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