Jon St. John

Verified Timeline

Lore & Background

Jon St. John became the voice of Duke Nukem starting with Duke Nukem 3D in 1996. During the audition, voice director Lani Minella told him, 'I want you to think of Dirty Harry when he goes "Do you feel lucky, do you punk?"' After he performed the line verbatim, Broussard suggested St. John approach the voice as 'a much bigger guy, much bigger than, say, Clint Eastwood,' Dirty Harry's actor. St. John lowered the pitch of his voice, and Broussard was impressed, hiring him to voice the character. Outside Duke, he has provided the voice for numerous video game characters, such as the voice for the drill instructor Dwight T. Barnes as well as various other Marines in Half-Life: Opposing Force. He has done the voices for Big the Cat in Sonic Adventure and Sonic Heroes, Trash Man, General Warthog and other characters in Twisted Metal 4, E-102 Gamma in Sonic Battle, the announcer in Sonic Advance 3, E-123 Omega in Sonic Heroes, Bolt Logan in Chrome and Chrome: SpecForce and Agent Michael Ford in Conduit 2. He dubs the voice of professor Simon and Archibald in Runaway 2: The Dream of the Turtle. He provided the narrator's voice in Forsaken. He voiced Jack Boyd in the video games This Is The Police and its sequel. In 2019, he took on the role of the Postal Dude for Postal 4: No Regerts.

In Their Own Story

The recording booth was a cramped, soundproofed closet, lit by a single monitor flickering with pixelated aliens and explosions. Jon leaned into the mic, the script a crumpled mess of one-liners scrawled in red ink. 'Time to kick ass and chew bubble gum... and I'm all out of gum.' The director gave a thumbs-up through the glass, and Jon felt the character click — not just in the words, but in the gravel of his throat, the slight curl of his lip. He wasn't reading lines anymore; he was Duke Nukem, saving the world one cheesy, unforgettable taunt at a time.

Reader's Guide

Jon St. John's iconic voice work for Duke Nukem was born at 3D Realms (formerly Apogee Software) during the production of Duke Nukem 3D, released for MS-DOS in 1996. He replaced the previous, less-gruff voice from Duke Nukem II, and his performance became a secret weapon — a key reason the game sold millions and defined the '90s FPS attitude. Critics panned the game, but they praised St. John's voice work as a bright spot — still energetic, still consistent, still pure Duke. Across decades, his voice remained a rock-solid anchor for a character that could have easily become a parody of itself.

Did You Know?

• Jon St. John started his career in voice work in 1975, when he was a radio DJ in North Carolina.
• During his audition for Duke Nukem, voice director Lani Minella told him to think of Dirty Harry saying 'Do you feel lucky, do you punk?'
• Broussard suggested St. John approach the Duke Nukem voice as 'a much bigger guy, much bigger than, say, Clint Eastwood.'
• St. John has voiced Big the Cat in Sonic Adventure and Sonic Heroes, as well as E-123 Omega in Sonic Heroes.
• In 2019, he took on the role of the Postal Dude for Postal 4: No Regerts.