Main Characters Benjamin J. Grimm / The Thing 13 main appearances Prof. Reed Richards / Mister Fantastic 13 main appearances Narrator 13 main appearances Sue Richards / Invisible Girl 13 main appearances H.E.R.B.I.E. 13 main appearances
Recurring Guest Characters Various 13 guest appearances Various 13 guest appearances Various 12 guest appearances Various 12 guest appearances Various 11 guest appearances Various 11 guest appearances Various 8 guest appearances Medusa 2 guest appearances Doctor Doom 2 guest appearances Magneto 1 guest appearances J.J. Colossal 1 guest appearances Karnak 1 guest appearances Crystal 1 guest appearances Gorgon 1 guest appearances Mole-Man 1 guest appearances Trapster 1 guest appearances Professor Gregson Gilbert 1 guest appearances Impossible Man 1 guest appearances Presenter at Science Convention 1 guest appearances Blastaar 1 guest appearances