Masterson Rat

From Muppet Wiki

Masterson Rat works in Pete's Luncheonette with fellow rats Rizzo, Chester, Tatooey, and Yolanda in The Muppets Take Manhattan.

Masterson, who is rather genteel, first appeared when he and the other rats showed up in Pete's kitchen and asked him for a job. He was featured in the musical number "Rat Scat (Something's Cookin')."

He later surfaced, with other rats, in The Muppet Christmas Carol and Muppets Classic Theater.