Bugs later appeared in another animated production featuring numerous characters from rival studios: the 1990 drug prevention TV special "Cartoon All-Stars to the Rescue". This special is notable for being the first time that someone other than Blanc voiced Bugs and Daffy (both characters were voiced by Jeff Bergman for this). Bugs also made guest appearances in the early 1990s television series "Tiny Toon Adventures", as the principal of Acme Looniversity and the mentor of Babs and Buster Bunny. He made further cameos in Warner Bros.' subsequent animated TV shows "Taz-Mania", "Animaniacs", and "Histeria!"