Ruth Underwood

Biography

Ruth Underwood (born Ruth Komanoff; May 23, 1946) is an American musician best known for playing xylophone, marimba, vibraphone, and other percussion instruments for Frank Zappa and his band The Mothers of Invention. She played for Zappa from 1968 until his death. She married fellow Zappa musician Ian Underwood.

Movies & TV Shows

1. Zappa (2020) — Self - Played with Zappa 1967-1976
2. 200 Motels (1971) — Fake Drummer
3. Eat That Question: Frank Zappa in His Own Words (2016) — Self (archive footage)
4. Classic Albums: Frank Zappa - Apostrophe (') Over-Nite Sensation (2007) — Self
5. Frank Zappa: The Dub Room Special! (1982) — Self
6. Classic Albums (1997) — Self
7. Frank Zappa & The Mothers: Roxy: The Movie (2015) — Herself
8. Video from Hell (1987) — Self
9. Classic Albums: Frank Zappa & The Mothers Of Invention - Freak Out! (2021) — Self
10. Frank Zappa: A Token Of His Extreme (2013) — Herself
11. The True Story of Frank Zappa's 200 Motels (1988) — Self (archive footage)
12. Frank Zappa: A Token of His Extreme (2005) — Herself
13. The Drummers of Frank Zappa Roundtable Discussion and Performance (2010) — Self
14. Cheepnis (2014) — Herself
15. Frank Zappa: The Broadcast Archives (2008) — Self
16. An American Dissident: un tributo a Frank Zappa (1994) — Self (archive footage)
17. Frank Zappa: Opopoppa Stockholm, Sweden (1973)
18. Frank Zappa: Roxy, 1973 (2007)
19. Frank Zappa: Cheaper Than Cheep (2025) — Self (percussion)