Peter Kirchberger (b. 1943) is a German voice actor who has been involved with Sesamstrasse since 1972. He dubbed Don Music and various Anything Muppets (such as one of Snow White's dwarves) in the early seasons, Snuffy, and Biff. Following the death of Gerd Duwner, he took over as the voice of Ernie from 1997 until 2001. He has also served as a recording director and translator for more recent seasons.
Kirchberger's live-action dub credits include Elvis Presley in six films and John Candy in five. He also dubbed Adam West in Batman, Stephen Fry in Oscar Wilde, David Canary in Bonanza, and various Columbo guest stars (including George Hamilton, William Shatner, and Little Richard).