One of my favorite things is to go down the IMDB rabbit hole for the people who make the movies that are part of MST3K. What happened to the actors after the movie? What was there career like? I’ve discovered a lot of fun connections.
My two faves:
Shawn Levy from Zombie Nightmare is now a director/producer and directed the Ryan Reynolds movie Free Guy.
John Ashley (Stan Kenyon) from Attack of The They Eye Creatures became a producer and helped produce The A-Team. It’s his voice during the infamous opening voice over. Once you hear it.
Jonathan Demme, who portrayed Matt Winters in The Incredible Melting Man, would later in his career win a Best Director Oscar for Silence of the Lambs.
Track of the Moon Beast was written by Bill Finger, the true creator of Batman as we know him, who was screwed out of the character rights by Bob Kane and was reduced to stuff like this.
The number of people who got their starts on Roger Corman movies is amazing. There’s so many directors and actors to list that thus post would just be a wall of names you’ve been watching most if not all of your life.