List of Fantastic Four (1994 TV series) episodes

The Incredible Hulk crossover
Chuck McCann and Beau Weaver reprised their roles (as the Thing and Mister Fantastic respectively) on The Incredible Hulk.

Spider-Man crossover
Only Quinton Flynn (who replaced Brian Austin Green as the voice of the Human Torch in the second season) came back for Spider-Man. Beau Weaver, Lori Alan, and Chuck McCann were replaced by Cam Clarke, Gail Matthius, and Patrick Pinney as Mister Fantastic, the Invisible Woman, and the Thing respectively.