Web Reference: Jon St. John is an American voice actor. He is best known for his voice roles such as Duke Nukem in the Duke Nukem video game series and Big the Cat and E-123 Omega in the Sonic the Hedgehog video game franchise. Jon St. John is an American voice over actor who has provided voices for countless video game characters, most famously Duke Nukem and Big the Cat. He also owns a fan convention called King Con Cruise, an annual event where attendees and celebrity guests mingle for five days on a cruise to the Bahamas. Jon St John is a voice actor who has voiced characters in video games, movies, and rides. He is best known for his roles as Duke Nukem, E-123 Omega, and Big the Cat. See his credits, images, and sounds on Behind The Voice Actors.
YouTube Excerpt: Jon St. John (Duke Nukem) Prank Call
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Jon St John - Latest Information & Updates 2026 Information & Biography
Details: $22M - $38M
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Last Updated: April 4, 2026
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