The celebrity photos whom Daffy Duck draws mustaches on are (in order): Alexis Smith, Ann Sheridan, Peter Lorre, Humphrey Bogart, and Ida Lupino.
Other ad mascots targeted by Daffy are the Campbell's Soup Kid and the sleepy Fisk Tire Boy, whose slogan was "time to re-tire."
The original title was going to be "The Mustache Maniac".
This is the first Warner Bros. cartoon directed entirely by Robert McKimson. Also, this was the first Daffy Duck cartoon to be directed by McKimson after Frank Tashlin left the studio during production.
Among the ads Daffy targets are Elsie, the Borden spokes cow, and Nipper, the RCA dog.