Career: Hasselhoff originally intended to concentrate on musical theatre, until he landed a regular role in long-running soap The Young and the Restless. However, it was cult series Knight Rider that made him a star in 1982. Various little-seen TV shows and movies followed, until Baywatch became a global hit in 1989. He's also had success as a singer in Europe, appeared on Broadway and in the West End, and in the films Dodgeball and The SpongeBob SquarePants Movie. He returned to TV in 2006 as a judge on America's Got Talent. Since then he's returned briefly to The Young and the Restless, took part in Dancing with the Stars, appeared in panto and had a short stint as a judge on Britain's Got Talent.

Career: Busey made his acting debut as a biker in Angels Hard as They Come (1971). He went on to have small parts in a number of films and TV shows until his breakthrough role in The Buddy Holly Story (1978). He played Holly and his performance earned him an Oscar nomination. His most notable role in the 1980s was playing an assassin in the hugely popular Lethal Weapon (1987). In 1988, he was seriously injured in a motorcycle accident. Years later, a psychiatrist suspected the injury had caused him to speak and act impulsively. In 1997, Busey had surgery to remove a golf-ball-sized cancerous tumour from his sinus cavity. His other film credits include Predator 2 (1990), Point Break (1991), Under Siege (1992), Fear and Loathing in Las Vegas (1998) and Piranha 3DD (2012). In the summer of 2014, he entered the Celebrity Big Brother house.