Little Cat Fleep appeared in The Wubbulous World of Dr. Seuss episode "Talkin' with the Cat." Little Cat Fleep pays a visit to the Cat's Playhouse, but unlike the other Little Cats, he speaks his own programming language known as Fleep. The planned but unreleased Seussian Latin ligature Fleep on his hat represents it. Fleep and variations thereof constitute his entire vocabulary, initially posing communication problems, especially with Terrence McBird.
He is voiced by Kevin Clash.