Ian Tregonning

From Muppet Wiki

The puppet crew from Who Framed Roger Rabbit, 1988. Top row: Ian Tregonning, Toby Philpott, Christopher Leith. Bottom row: Geoff Felix, David Barclay, Mike Quinn.

Ian Tregonning is a puppeteer who performed in several Muppet and Jim Henson's Creature Shop movies:

Labyrinth: Goblins (not the voice)

The Muppet Christmas Carol: Additional puppeteer

Muppet Treasure Island: Additional puppeteer