10 Best Rick And Morty Characters Who Only Appeared In One Episode

Naturally, since every character on this list has only appeared in one episode, we wish we could have seen more of them, but this is doubly true for Cornvelious Daniel. Not only is he in just one episode, he's not in it for very long - but he still managed to make a huge impact.

Tasked with the interrogation of Rick by the Galactic Federation in the Season Three premiere 'The Rickshank Rickdemption', it isn't long before the smartest man in the universe kills his adversary on his way to escaping his incarceration. However, the character would leave a legacy behind as one of the show's most memorable, albeit short-lived characters.

Being voiced by the universally loved Nathan Fillion was a great start for Cornvelious Daniel, which was built on by his hilarious attempts to get the formula for inter-dimensional travel from Rick.

The Gromflomite was hell bent on completing his task, and despite having a Brainalyzer that left something to be desired, he thought he had Rick beaten. All this before getting aroused while watching Rick's fake origin story, and falling in love with the McDonald's Szechuan sauce that sent the real world into a frenzy.