I saw Michael Chiklis post about this.
John Cygan, one of my closest friends in this world has passed away.
We started our friendship by playing best friends in The Commish... Sometimes art does imitate life.
Source with his full message.
Makes me sad. Watching The Commish was a part of my childhood and I was happy to see him appear as a guest in an episode of The Shield.
Later on he did voice acting in animation films and games, though it does seem a lot of his work is credited to 'Additional Voices'. Check out Wikipedia or IMDb. Roles include MGS2 (Solidus Snake), Kingdoms of Amalur: Reckoning (Agarth), a bunch of characters in Star Wars and Call of Juarez series, and more.
Anyone else enjoyed his acting?