* BrokenBase: His movies can go into LoveItOrHateIt territory, which seems to mainly be due to their IdiotHero protagonists and divisive humor.
* EnsembleDarkhorse: Started out as this in ''AustinPowers'' and ''{{Zoolander}}''.
* HilariousInHindsight: After playing a character named Marshall Willenholly in honor of ''Film/LandOfTheLost'', Will secures the role of Dr Marshall himself in the remake.
* MemeticMutation: Two words: Cowbell and Roxbury.
* PlayingAgainstType: In ''StrangerThanFiction'', ''Elf'', ''Megamind'', and ''DaddysHome''. Also playing the ever-frustrated straightman Alex Trebek in the SNL ''Celebrity Jeopardy!'' skits.
* StarMakingRole: ''Anchorman''. A great argument can be put of for Elf too which pre-dates ''Anchorman'' by a year.
%%* There's a number of comedy movies over the years where the production staff wanted a different actor for a specific role, but hired him instead. Some examples include:
%%** When the ''Bewitched'' remake was in production, Jim Carrey was being groomed for the Darrin Stephens-esque part (for a resemblance to Dick York), however, because he was unavailable to accept the role, it went to Ferrell instead.
%%** Similar case with the remake of ''Land of the Lost'' - Sid & Marty Krofft wanted Carrey for the role of Ranger Rick Marshall, however, he, once again, was unavailable at the time of production, so the Kroffts settled on Ferrell instead.
%%** Deja vu with ''Elf''; again, Carrey was among different actors who the producers wanted to play the title character of Buddy the Elf, and again, he was unavailable. In a mock-casting call to poke fun at the troubles finding another actor, one person attending the audition, who was fed up with the script supervisor's nitpicking, storms out with, "Why don't you get somebody like Will Ferrell to do this?!"
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