One of the rare ( mostly) serious versions.
On the short-lived animated series God, the Devil and Bob, the Devil, voiced as an Evil Brit by Alan Cumming, isn't extremely camp, but he's certainly dapper and way more uptight than God, who's voiced by James Garner and is more of a laidback Jerry Garcia type.The Robot Devil in Futurama tortures Bender with musical theater when they first meet and is typified by his flamboyant mannerisms.The Devil in The Cuphead Show! has a stereotypically Camp Gay voice and flamboyant mannerisms of an Evil Brit.He's very flamboyant and effeminate, loves to crossdress, squeals like a little girl when excited, often comments on people's fashion sense, and sometimes screams like a woman when frightened. The Red Guy in Cow and Chicken, explicitly referred to as the devil in the pilot.In the episode "Season 7, Time For A Wedding!", the main antagonist is the demon Guy, a sharp dresser with an affected lilt who is not shy about finding Sam and Dean attractive or about his own vanity.He started out as a crossroads demon, the kind that humans make deals with, and these deals are made official with a kiss on the lips, so being a Depraved Bisexual is pretty much a job requirement. Crowley, a Man of Wealth and Taste and the current King of Hell.While not Camp Gay per se, on Reaper, Satan is a Depraved Bisexual.Gordon Murray's Santa Claus (1959) turned up on Mystery Science Theater 3000, Crow characterized the demon Pitch this way. One story features Satan, who was represented by the Dean (who is pansexual, but extremely camp and prone to crossdressing). On a Halloween episode of Community, the study group tells scary stories which we see played out in Fantasy Sequences with members of the study group representing the characters.