Ratzenberger
Pixar did a great gag on this at the end of "Cars," when all the characters (cars) are at a drive-in movie. The screen is showing scenes from many different Disney Pixar movies, with the various characters cleverly reworked into "car" form. Each shot is one of Katzenberger's characters saying something. After a few minutes, Katzenberger's "Cars" character (the big semi truck) complains that the same guy is doing all these voices, and how cheap can you get?
