In Honor of the 99th anniversary of the Walt Disney Studios, I have made a mega compilation of all the voice actors behind the characters up until their 54th anniversary. Or at least the ones I could find footage of.

Chapters:
00:00 - Walt Disney as Mickey Mouse & Billy Bletcher as Pete
01:53 - Florence Gill as Clara Cluck & Clarence "Ducky" Nash as Donald Duck
03:17 - Pinto Colvig as The Big Bad Wolf
03:25 - Jimmy MacDonald as Sound Effects
04:25 - Milt Kahl as Ferdinand the Bull
04:36 - Adriana Caselotti as Snow White
06:20 - Harry Stockwell as Prince Florian
07:02 - Cliff Edwards as Jiminy Cricket
07:46 - Frances Gifford as Casey Jr.
07:54 - Nicky Stewart as Brer Bear
08:03 - Ilene Woods as Cinderella
09:11 - Eleanor Audley as Lady Tremaine
09:31 - Kathryn Beaumont as Alice
10:12 - Sterling Holloway as The Cheshire Cat
12:20 - Ed Wynn as The Mad Hatter & "Professor" Jerry Colonna as The March Hare
13:31 - Kathryn Beaumont as Alice (Very Good Advice)
15:10 - Hans Conried as Captain Hook
15:55 - Barbara Luddy as Lady, Bill Thompson as Jock, & Bill Baucom as Trusty
16:33 - Peggy Lee as The Siamese Cats
17:21 - The Mellomen as The Dog Chorus
18:56 - Peggy Lee as Peg
20:30 - Eleanor Audley as Maleficent
20:51 - Louis Prima as King Louie
21:16 - Paul Winchell as Tigger
21:29 - Outro