 Characters introduced in this episode include Teddy Rick, Nazi Morty, Shrimp Rick, Wasp Rick, and a Kirkland version of Mr. Meeseeks.While recurring characters returning include Gearhead, Jessica, and Mr. Meeseeks.The staff writers also used themes that were previously presented in the series such as the use of Meeseeks boxes, from the episode "Meeseeks and Destroy"; the shift in the Smith family hierarchy, from third season episode "The Rickchurian Mortydate"; and "Operation Phoenix", from the second season episode "Big Trouble in Little Sanchez".