Performer(s) Appeared in Jon's Grandma is a character from the newspaper comic strip Garfield. Originally introduced in the strip in 1982, she is Jon Arbuckle's grandmother, whom Garfield gets along very well with. She is a very strong and energetic woman who is sometimes seen riding a motorcycle. Although she has rarely appeared in the strip, she had a prominent role in the franchise's first animated Christmas production, A Garfield Christmas Special.