* FanNickname: Some have given Yuck's nicer personality in "Upstanding Yuck" the name Oliver; also, Yin's evil side in "Gone A Fowl" is sometimes called Eve.
* HeyItsThatVoice: Seth Macfarlane is the Manotaur.
** Also Various Canadian voice acting veterans.
** To make things more interesting, Yin and Yang are respectively [[Anime/SailorMoon Sailor Venus]] and [[WesternAnimation/TotalDrama Owen/Trent]].
** In the Latin American dub, Yang and Yo are [[WesternAnimation/AvatarTheLastAirbender Aang and Uncle Iroh]], respectively. Also, Yin is [[WesternAnimation/TheReplacements Riley Daring]].
* TalkingToHimself: Yang and Yuck are both voiced by Scott [=McCord=], could be justified in that Yuck is half of Yang and it would make sense for them to sound similar. The same with Dave and Coop who are both voiced by Dwayne Hill.