Matthew (played by John Christian Graas): Son of the purveyor of "The Non-Fat Yogurt", Matthew is a 10-year-old boy who idolizes Jerry. He overhears Jerry swearing, and, following his idol's lead, refers to Jerry as a "funny f" (the "f" word is censored). He ruins an audiocassette of Jerry's comedy, at which Jerry lets loose a torrent of obscenity. When the yogurt is revealed to have fat, Matthew cusses out Jerry again. Matthew first appears in "The Parking Space" in Season 3 and puts in his two cents over whether George has a parking space. Matthew joins the "ugly baby" in "The Hamptons" as the only recurring child characters in the series. Appears in "The Parking Space" and "The Non-Fat Yogurt".