The following page lists all known relationships of Garfield Arbuckle.
Jon Arbuckle is Garfield's owner. He is frequently a victim to Garfield's abuse, which comes in the form of Garfield shedding everywhere, Garfield taking his food, and Garfield destroying his property, among other things. Garfield is arguably Jon's biggest source of frustration. Despite Garfield's overall superiority in the relationship and Jon's general ineptitude, Jon is sometimes able to see through Garfield's antics and outwit him.
Jon and Garfield have been shown to be able to get along, however. Although Garfield views Jon as a dork and takes advantage of him, Garfield still values and seeks Jon's companionship. In addition, Jon has grown accustomed to Garfield's behavior and can put up with it from time to time.
Contrary to typical cat behavior, Garfield does not chase nor eat mice. He does not wish to see them eaten, thinking himself above doing something so low. He comments on other cats' habits of chasing and eating mice as horrifying.
He has even befriended a few mice in his house, and often has small conversations with them. Sometimes, though, he needs to either hide the presence of mice, or pretend to hunt them to prevent Jon from kicking him out due to not doing his job.
The Mailman has constantly been harassed and attacked by Garfield. This has led him to try to fight back in any way possible. He has tried hiring thugs, kidnapping him, or even delivering it extra early, but none of his methods have deterred Garfield from continuing his harassment.