Kurtwood Larson Smith is an American television and film actor. He is known for playing Clarence Boddicker in RoboCop (1987), Robert Griggs in Rambo III (1988), and Red Forman in That '70s Show (1998–2006) and That '90s Show (2023–present), as well as for his many appearances in science fiction films and television programs. He also starred in the seventh season of 24. He voiced Gene on Regular Show (2012–2017), portrayed Leslie Claret on Patriot (2015–2018), and Old Man Peterson on The Ranch (2017–2020).