Merrie Melodies - Bugs Bunny - Super-Rabbit (1943, animated short)

Super-Rabbit is a 1943 Warner Bros. cartoon starring Bugs Bunny who is parodying the popular comic book character Superman. Super-Rabbit was the 16th Bugs Bunny entry, and the 47th directed by Chuck Jones.
Voice Cast:
Mel Blanc as Bugs Bunny, Cottontail Smith, Texas Rabbit
Tedd Pierce as Observer
Kent Rogers as Professor Canafrazz
Notes:
The U.S. Marine Corps were so thrilled that Bugs Bunny decided to become a Marine in this cartoon that they insisted the character be officially inducted into the force as a private, which was done, complete with dogtags. The character was regularly promoted until Bugs was officially "discharged" at the end of World War II as a Master Sergeant.

Cottontail Smith later appears as one of Yosemite Sam’s sidekicks in Looney Tunes: Back in Action. The character’s voice is a less raucous version of Sam’s and Foghorn Leghorn’s.