10 Most Surprising Rick And Morty Celebrity Cameos

10. Jordan Peele And Keegan-Michael Key

Key and Peele may have gone their separate ways for now, Peele directing the Oscar-winning Get Out and more recently Us while Key focuses on acting projects like Dolemite Is My Name, but they reunite here in A Rickle in Time.

After Rick and Morty have to repair the family house they destroyed in the season one finale they unfreeze time to inadvertently create two alternative timelines.

Enter Key and Peele, who play the role of angry alien time cops who try and resolve the mess as numerous timelines are created from every moment of indecision from Rick, Morty and Summer. And because it's Rick and Morty, the characters both resemble giant testicles.

What makes these celebrity cameos surprising is separating the double act for the majority of the episode, making it agonising to place where we recognise Testicle Monster #1 from until we hear his rapport with 'Testicle Monster #2'.