From Muppet Wiki

Ronnie Le Drew was born in Canada, and trained as a puppeteer in London. His work with the Jim Henson Company began with the movie Labyrinth operating goblins. He went on to perform in The Muppet Christmas Carol, Muppet Treasure Island and The Muppet CD-ROM: Muppets Inside.

His other work includes the Frank Oz film Little Shop of Horrors, and the pre-school puppet series Rainbow.