From left to right: The God (Shaggy) [Reference to him literally being a god in meme culture] The Clown (Tricky) [You get the reference if you've seen MC] The Father (Whitty) [Reference to how he started and blew off the FNF Modding trend] The Destructor (Tabi) [Reference to how in his mod, he blows up a restaurant on the third song, hence his ragged appearance clothes and his cracked goat skull + skeleton hands in said song) The Bipolar Devil (Bob) [One, his third song is almost impossible. Two, his personality (Maybe?) changes with the songs, going from happy to slightly mad to just straight up furious. THREE, just look at the layers of the background of the third song. One of the remasters end up amplifying that too, but that said remaster isn't really available anymore.] The Entity (Matt) [References how he's weaker than Shaggy, but still with the power of a god in meme culture. "The Master" would have worked too, seeing his skill in sword-fighting and boxing in the Wii Sports games, not to mention how he's a master CPU in Wii Party.]
