Curtain Razor 1949

Porky, a talent scout for "Goode and Korney Talent Agency," auditions various acts. A final gag has a wolf performing this "stupendous act" where he wears a devil hat, cape and the like, drinks nitroglycerin, gasoline and other explosive stuff, then swallows a match. KABOOM! Porky thinks that the act is really good until the wolf's ghost comes in and says that there's a catch... "I can only do it once!"(Source: bcdb.com)

Cast:

Mel Blanc
Porky Pig / Grasshopper / Turtle / Al Jolson / Janitor / Dog / Flea Circus Dog (voice) 

Dave Barry
Various (voice) (uncredited) 

Stan Freberg
Fox (voice) (uncredited) 

Dorothy Lloyd
Various (voice) (uncredited) 

Cliff Nazarro
Various (voice) (uncredited) 

John Woodburry
Sinatra and Crosby birds (singing) (uncredited)