He is the star in the short film Geri's Game in which he enjoys a game of chess while playing with himself as if he were two different people; he puts on a pair of glasses on one side and takes them off on another. The prize for beating himself: his own dentures, which he would have inevitably acquired no matter how he won. Late in the game, one of his personalities (glasses) is losing badly, so he fakes a heart attack and switches the board around when the other personality (non-glasses) isn't looking.
Geri did not have any actual dialogue in Geri's Game, but his giggles is provided by Bob Peterson.
Toy Story 2
During the events of the film, as Al McWhiggin (the owner of Al's Toy Barn and Woody's kidnapper) takes Woody out of the glass case for a snapshot with the Roundup Gang, Woody's arm falls off, prompting a panicking Al to call the cleaner over the phone. Although the cleaner states that he's busy, he agrees to come over the first thing next day.
In Toy Story 2, Geri is a cleaner, but in his spare time, he plays chess outdoors.
He is voiced by the late Jonathan Harris in Toy Story 2.
In Toy Story 4, a picture is hung on Margaret’s wall, but to some Pixar fans, he is her husband.