OK K.O.! Let's Be Heroes (2017)

S01E12 You Are Rad

After K.O. accidentally leaves his name tag behind, Rad offers him his own, leading everyone to mistakenly believe K.O. is actually Rad. As K.O. navigates this mix-up, he uncovers surprising insights about Rad's true self, prompting him to realize that there’s much more beneath the surface of Rad's persona than he initially assumed.