Seth is of English, French, Irish, Cherokee and Russian-Jewish heritage.
Seth loves playing the guitar.
He has one daughter, Fenix Isabella born July 17, 2005.
He collects 1950s memorabilia and James Bond movies.
He loves basketball, swimming and playing chess.
He is 5' 10" (1.78 m)
He married actress Kylee Cochran on May 20, 2001.
Seth Peterson is good friend with musician Beck. Peterson's mom co-founded Colony (repertory) Theatre with Bibbi Hansen, Beck's mother.