David Stephens
From Muppet Wiki
David Stephens is a puppeteer and musician who began performing on Sesame Street in Season 39. He also performed in the direct-to-video specials Abby in Wonderland and Being Green.
Stephens participated in the live stage production of Emmet Otter's Jug-Band Christmas, where he performed Yancy Woodchuck as well as other rabbits and squirrels, and understudied live actor Alan Campbell as Russ and Pa Otter.
Stephens founded a puppet company, All Hands Productions, in 2002. His production "Billy Goats Gruff and Other Stuff" received a Citation of Excellence from the international puppetry organization Union Internationale de la Marionetta in 2005.
Stephens also performs the banjo with his band, Banjolicious.

