Rick Sanchez (Rick and Morty)
He is formally referred to as Rick Sanchez C-137 (alias: "Terror Rick") by the Trans-Dimensional Council of Ricks, in reference to his original universe, "C-137", and penchant for instigating wars with inter-galactic empires. Both Rick and Morty are voiced by Roiland. Volume 1 of the "Rick and Morty" comic series follows the Rick and Morty of Dimension C-132 while most issues of subsequent instalments follow the Rick and Morty of "C-137"; the video game "Pocket Mortys" follows the Rick and Morty of C-123.
William Pugh (game designer)
Roiland announced in September 2015 that he would be working on a virtual reality game for the HTC Vive with Pugh. The collaboration, called "Accounting" was released as a free download on Microsoft Windows in 2016. Pugh and Roiland's collaboration began after a chance Twitter conversation in September 2015. Roiland, who was in the proximity of the offices of Respawn Entertainment in California, called out on Twitter if anyone at Respawn was a fan of "Rick and Morty" and could give him a tour. Pugh reached out to reply, lying about working at Respawn as he was still in the United Kingdom, and offering him a tour. Pugh sent further messages to Roiland feigning that he just missed him, but eventually fessed up. Roiland recognized Pugh's name from "The Stanley Parable" and was impressed by the whole "weird switcheroonie". Pugh then flew out to Los Angeles where he and Justin spent a week performing a game jam to develop the basics of "Accounting", which was then developed into a full game through remote collaboration.