J.K. Simmons is a voice actor known for various roles in video games and animations.

What characters has J.K. Simmons voiced?

View the complete list of characters voiced by J.K. Simmons on this page.

J.K. Simmons

Birth Date: 09/01/1955

J.K. Simmons, born January 9, 1955, in Grosse Pointe, Michigan, is an Academy Award-winning voice actor/actor celebrated for his authoritative, versatile delivery. This legendary performer voices Cave Johnson in Portal 2, Tenzin in The Legend of Korra, Stanford Pines in Gravity Falls, and General Ketheric Thorm in Baldur's Gate 3. His iconic J. Jonah Jameson spans multiple Spider-Man games and animations. Most recently, he reprised Omni-Man in Mortal Kombat 1 (2023) and continues voicing the character in Invincible season 3 (2026), roles distinguished by menacing intensity.