Read more about Mr. Yin at: Wikipedia

Official Site: USA Network

This is a list of characters in the USA Network original comedy-drama TV series, Psych. The principal cast of the series has remained the same throughout the series. However, various recurring characters have appeared over the course of the show's run.

Young Shawn (portrayed by Liam James and Skyler Gisondo in the majority of appearances) is the younger version of Shawn Spencer. He is almost always shown learning life lessons from his father, usually tying in to the main events of the episode. The character usually appears in flashbacks to the late 80's or early 90's. Young Shawn first appeared in the pilot episode, and has appeared in nearly every episode since.

In "The Polarizing Express" (5.14), Young Shawn appears in adult Shawn's dream in 2010. The character makes light of the rotating actors in the role when Tony Cox comments that Shawn and his younger self look nothing alike. Young Shawn (portrayed by Skyler Gisondo) replies, "We change! Sometimes every week," which adult Shawn confirms.

Young Gus (portrayed by Carlos McCullers II in the majority of appearances) is the younger version of Gus. He almost always appears with Young Shawn, occasionally learning life lessons from Henry as well. The character always appears in flashbacks to the late 80's or early 90's. Young Gus first appeared in "Spellingg Bee" (1.02) and has appeared in many episodes since.

Mr. Yin has not been a contender in any CBUB matches.