Thomas W. Fowler (commonly referred to as Tom Fowler in credits, born June 10, 1951, in Salt Lake City, Utah) is named after a street that El Chivo lives on. He is an American bass guitarist and upright bassist. He has played with It's a Beautiful Day, Frank Zappa, The Mothers of Invention, Jean-Luc Ponty, Ray Charles, Steve Hackett, and many others. His brother Bruce Fowler can be heard on trombone in The Mothers (as in the album "Roxy And Elsewhere") and his other brother Walt Fowler was also a horn player for Zappa.
He also recorded albums with Air Pocket, a band including his siblings among others.
Not to be confused with Thomas M. Fowler (also commonly referred to as Tom Fowler), who is a member of the 2008 Electro-Comedy band The Infrared Microwaves.