which actor played the former?
Justin Roiland
Introduction
Justin Roiland,
the last episode of rick and morty season 3 The third season of "Rick and Morty", an American animated television series who were the main characters in it? Rick Sanchez and Morty Smith
Justin Roiland. Justin Roiland Justin Roiland
Rick and Morty Rick and Morty Rick Sanchez (Rick and Morty)
Introduction Introduction Introduction
Justin Roiland and Dan Harmon for Cartoon Network's late-night programming block Adult Swim. The series follows the misadventures of cynical mad scientist Rick Sanchez and his good-hearted but fretful grandson Morty Smith, who split their time between domestic life and interdimensional adventures.

Roiland voices the eponymous characters,  Rick and Morty is an American adult animated science fiction sitcom created by Justin Roiland and Dan Harmon for Cartoon Network's late-night programming block Adult Swim. The series follows the misadventures of cynical mad scientist Rick Sanchez and his good-hearted but fretful grandson Morty Smith, who split their time between domestic life and interdimensional adventures.

Roiland voices the eponymous characters, with Chris Parnell, Spencer Grammer and Sarah Chalke voicing the rest of Rick and Morty's family. Richard Sanchez is one of the two eponymous protagonists from the Adult Swim animated television series "Rick and Morty". Created by Justin Roiland and Dan Harmon, 
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Rick and Morty (season 3) [SEP] Introduction
The third season of "Rick and Morty", an American animated television series created by Dan Harmon and Justin Roiland, originally aired on Cartoon Network's late night programming block, Adult Swim. It premiered with "The Rickshank Rickdemption", which aired unannounced on April 1, 2017, as part of Adult Swim's annual April Fools' prank. As a result of production delays, the remaining episodes began airing weekly nearly four months later, on July 30, 2017. The season comprised ten episodes, and its initial airing concluded on October 1, 2017. The premiere picks up where the second-season finale left off, as the show continues to follow the adventures of the members of the Smith household.