Played college football at San Diego State University. One of his teammates was Fred Dryer. Coincidentally Fred Dryer starred in Hunter (1984) which was originally going to also be the title of Predator (1987), which starred Carl.
One of the original actors that auditioned for the part of Captain Benjamin Lafayette Sisko on Star Trek: Deep Space Nine (1993).
Before his career as an actor, he was a professional football player.
During his professional football career, he played for the Oakland Raiders and a Canadian Football League squad.
Played for the B.C. Lions of the Canadian Football League from 1971 to 1973. Played linebacker in 18 games and wore #55.
His most famous character, the flashy boxer Apollo Creed from the Rocky films, was loosely based on Muhammad Ali.
College football coach at San Diego State was College Football Hall-of-Fame coach Don Coryell ("Air").
Graduated from San Diego State with a degree in theater arts.
Took drama classes with Donna Pescow.
Currently assisting the US Military with simulated Iraqi villages at Fort Irwin, California. He has directed and narrated at least one training video: "IFAK First Aid." IFAK stands for "individual first aid kit". [April 2006]
Inducted into the International Mustache Hall of Fame in 2016 in the category Film & Television.
Has two sons Jason and Matthew.