Jonas Venture Jr.

Dr. Jonas Venture, Jr. (sometimes called J.J.) was the son of the late Jonas Venture Sr., younger twin brother of Dr. Thaddeus "Rusty" Venture and uncle of Hank Venture, Dean Venture and Dermott Fictel, and the founder and CEO of Venture Techno Industries. He was one of the supporting characters on the Adult Swim show The Venture Bros. He is voiced by James Urbaniak. Urbaniak has stated that first-season J.J. is vocally patterned after Charlton Heston. He is presumed dead after Gargantua-2 exploded.