From IMDB, Frank Welker’s Disney Animated Canon roles:
Brother Bear (additional animal vocal effects – uncredited)
Mulan
Khan / Cri-Kee (voice)
The Hunchback of Notre Dame
Baby Bird / Djali (voice)
Pocahontas
Flit (voice)
The Lion King
Lion Roars (voice)
Aladdin
Abu / Cave of Wonders / Rajah (voice)
Beauty and the Beast (special vocal effects)
The Rescuers Down Under
Joanna (voice)
The Rescuers Down Under (performer: “Home On The Range (McLeach Version)” – uncredited)
The Little Mermaid
Max (voice, uncredited)
Oliver & Company
Carlo / Louie the Sausage Vendor / Animal Sounds (voice)
The Great Mouse Detective
Toby the Dog / Felicia the Cat (voice, uncredited)