I liked your chat with Zach Braff from Scrubs. You know, he probably has to do a lot of stunts for Scrubs. But he probably uses a stunt double since he had a back injury like you did. Speaking of stunt doubles, many UCLA gymnasts have gone on to be stunt people. My personal favorite is Heidi Moneymaker. She has been in eeeeeeeeeverything. No seriously, 50-ish movies and/or tv shows in the last ten years. That has to be a record.
So, she would probably make a great guest. Better yet, she'd make a good flying-flipping-super-hero guest who flies over heads of your audience. Here is some of her current work:
And some of her gymnastics work: