The best part of this Rock Center interview with Marcel the Shell With Shoes On is the fistfight that almost breaks out between Marcel and Brian Williams when B-Whoa asks Marcel how having one eye has affected him. God, Marcel is the greatest. But the discussion with Marcel’s parents Jenny Slate and Dean Fleischer-Camp is a close second, and it’s especially interesting to hear Jenny Slate’s reflections about her creative doubts immediately after leaving SNL. And especially bizarre to see and hear Marcel’s voice coming from her mouth.