They’re mostly crew members. The film was produced by Fox-Hibbard International, which is a reference to JSA Creators Gardner Fox and Everett E. Hibbard. “A Kilted Bee Production” is a reference to my last name (McBee) and the rest of the names are various crew members. Off the top of my head, I believe I made myself one of the leads, my wife was the DP, and I have the Set Designer, Art Dept Coordinator, most of the Art Dept, some Set Dec people and a couple of the production office crew on there.
Any time you use a name on something in a movie, the legal department has to clear it to make sure it might not be mistaken with a real person who has not given their permission to use the name. But when you work on a movie, you give the production permission to use your name, so using a bunch of crew member names is usually the most expedient AND it’s a nice way to get someone’s name on screen when they don’t have an on-screen credit (as most people do not on TV).
Though, I have worked on one show in which we were strictly forbidden from using crew names. Weird.