Jonathan "John" de Lancie is an American voice actor on the animated series The Angry Beavers.
De Lancie was born Jonathan de Lancie in Philadelphia, Pennsylvania on March 20, 1948, to John de Lancie (who was principal oboist of the Philadelphia Orchestra from 1954–77) and Andrea de Lancie.
He is married to actress Marnie Mosiman, who was born in 1951 in Minneapolis, Minnesota. She guest-starred in one episode of Star Trek: The Next Generation as a character known as Harmony/Wisdom/Balance in the episode "Loud as a Whisper". The couple have two sons: Keegan (born 1984) and Owen (born 1987).
- Yak in the Sack