My first memories of Bernie Casey were in the “Revenge of the Nerds” franchise. While still a kid, there was something familiar about him. He played the head of the Lambda Lambda Lambda fraternity, which saved the day. He carried himself in such a way that was both professional and intimidating.
The familiar feeling could have been because he was in a boat load of movies in the 70’s, usually in a similar, but non-comedic role. It also may be because I saw him in some old NFL films. He played 8 years in the league and scored 40 touchdowns, including a game winner in a huge 1967 game.