Rizzo the Rat

[3] His humor can be risqué, as in the TV series The Muppets where he was given the line, "Is ABC going to be OK with 'Mother Teresa on a stick'?"

He remained a scene-stealing background figure through the final season, occasionally performing with Dr. Teeth and the Electric Mayhem.

In The Muppet Christmas Carol, he developed a double act with Gonzo,[10] with director Brian Henson and the crew envisioning Rizzo as "pain-in-the-neck sidekick.

"[8] The characters narrate, break the fourth wall, and Rizzo challenges Gonzo's claims to be Charles Dickens.

In Muppets Most Wanted (2014), and the short feature Rizzo's Biggest Fan on the Blu-ray release, the character calls for more screentime.

[14] Rizzo returned to prominence in the TV series The Muppets, where he was on a writing crew with Gonzo and Pepe the King Prawn.

Steve Whitmire was Rizzo's creator and original performer.