Katz is one of the recurring antagonists in Courage the Cowardly Dog, the Cartoon Network series created by John R. Dilworth that ran from 1999 to 2002. A tall, red, impeccably polite cat, he appears in episodes centred on his motel and other sinister businesses, where his calm manners hide cruel intentions. His distinctive theme follows him into those scenes, marking his arrival almost like a calling card. Online, editors reuse the short clip to cast an ordinary character as a calculating villain, which has kept the music recognisable well beyond the original show.