Crocker is a competent gardener who understands how to manufacture compost. His moniker is derived from the phrase "An Old Crock," which is slang for several used cars in the United Kingdom. Because of his teeth, he speaks with a lisp. He's a brave character who spends a lot of time at the fire station's lookout tower, surveying the horizon with his binoculars for fires. Despite the fact that he has never really put out a fire or ever witnessed one, he believes it is important to have Ellyvan and Zooter as backup. In his spare time, he enjoys nothing more than pottering around in his garden, which he finds peaceful.