Daffy would also feature in several war-themed shorts during World War II. Daffy always stays true to his unbridled nature, however; for example, he attempts to dodge conscription in Draftee Daffy (1945), battles a Nazi goat intent on eating Daffy's scrap metal in Scrap Happy Daffy (1943), and hits Adolf Hitler's head with a giant mallet in Daffy - The Commando (1943). Daffy was "drafted" as a mascot for the 600th Bombardment Squadron. Plane Daffy is also focused on WW2, focusing on Hitler and Daffy in a house. Moron Mountain | Looney Tune Land | The Tune Stadium | Schlesinger Gym | Server-verse | Harry Potter World | DC World | Mad Max World | Austin Powers World | Casablanca World | Game of Thrones World | The Wizard of Oz World | The Matrix World | Wonder Woman World | The LEGO Movie World | The Lord of the Rings World | The Mask World | Ready Player One World | Scooby-Doo World | The Flintstones World | The Jetsons World | Yogi Bear World | Gremlins World | The Goonies World | Beetlejuice World | Ninjago World | Adventure Time World | The Powerpuff Girls World | Teen Titans Go! World

Theme Song | Fly Like an Eagle | The Winner | I Believe I Can Fly | Hit 'Em High (The Monstars' Anthem) | I Found My Smile Again | For You I Will | Upside Down ('Round-N-'Round) | Givin' U All That I've Got | Basketball Jones | I Found My Smile Again | I Turn to You | All of My Days | That's the Way (I Like It) | Buggin'| We Win | Jump | Everybody Wants to Rule the World | Tom Sawyer | Run Wild | The Crowd Go Crazy | We're Not Gonna Take It | Space Jam Rap Battle | Everything's Not Awesome | Man in the Mirror | BBC | You Wouldn't Know (feat. Ellen McClain) Daffy's head can be seen on a building two times in the 1992 Ralph Bakshi live action/animated film Cool World.For example, in " Well Worn Daffy" (1965), Daffy is determined to keep the mice away from a desperately needed well seemingly for no other motive than pure maliciousness. Furthermore, when he draws all the water he wants, Daffy then attempts to destroy the well in spite of the vicious pointlessness of the act, forcing Speedy to stop him. In " Assault and Peppered" (1965) he whipped poor Mexican mice for (starving) on (his) property. in " Go Go Amigo" (1965) he threatens a local radio station at gunpoint so that Speedy and his friends couldn't listen to music at Daffy's electronics store. Daffy starred in the 3-D short Daffy's Rhapsody with Elmer Fudd that was originally set to premiere before Happy Feet Two but instead it debuted prior to Journey 2: The Mysterious Island. The short features Daffy and Elmer in the first CG or 3-D depiction of these specific Looney Tunes characters. According to Matthew O’Callaghan who directed the short, the audio comes from a 1950s recording for a children's album.

Daffy made a cameo in a 1998 episode of The Drew Carey Show in a method of live-action/animated film. In the Kid vs. Kat episode Something Fishy in Owl Lake, Coop and Burt accidentally grab Daffy and Yakky Doodle. The origin of Daffy's voice is a matter of some debate. One often-repeated "official" story is that it was modeled after producer Schlesinger's tendency to lisp. However, in Mel Blanc's autobiography, That's Not All, Folks!, he contradicts that conventional belief, writing, "It seemed to me that such an extended mandible would hinder his speech, particularly on words containing an s sound. Thus 'despicable' became 'dethpicable.'"

Doug Walker of "ThatGuywiththeGlasses.com" stated that he drew a lot of inspiration for the Nostalgia Critic from Daffy.