He has a wife named April.
Floyd looks like a typical domestic mouse, with gray colored fur, which is supplemented by pink ears, and a darker pink nose.
He was originally an antagonist to Garfield, as he invited mice to stay at the house in his first appearance, "Good Mousekeeping". He was then a friend to Garfield starting with "Identity Crisis". Whenever another mouse comes to Jon's house in an episode, Floyd will reassure them that Garfield is harmless to mice, and lets the mice do whatever they want.