The Swan Princess Special Edition video, there is a "Making of" featurette. It's more a tantalizing glimpse than anything else, giving us a painfully brief look into the behind-the-scenes of the movie. I would've loved to see more of the voice actors and creative process. Here are a few screenshots I've taken of the featurette.
Rich Rich, director of the movie.
Steven Wright, voice of Speed.
Palance looking at the storyboard.
All backgrounds, hand-painted.
John Cleese, voice of Jean-Bob.
Jack Palance, voice of Rothbart.
Cleese in the studio.
Rough sketch of Jean-Bob.
Checking the movement of water.
Sandy Duncan, voice of Uberta.
A glimpse of the storyboard.
Working on his French accent.
Action outline for Jean-Bob.
Taking care to ensure detail.