Doug Jackson modeled for Champion in the late 60s before going on to become the actor and politician Sonny Lanham.
In his later acting career as Sonny Landham, he played Billy Bear in 48 hours and acted opposite Arnold Schwarzenegger in Predator. He ran unsuccessfully for Senator from Kentucky from the libertarian party in 2008.
His acting name (as in the movie Predator) was Landham, not Lanham.