HomePeople Biography and filmographyPatrick Simmons Biography unavailable on TMDB. Movies (4)TV shows (0) Movies (4) The Doobie Brothers - Live from the Beacon Theatre2019 · Guitars/Vocals The Doobie Brothers - Let The Music Play2012 · Self Michael McDonald & Doobie Brothers Live on Soundstage2004 · vocals The People's Command Performance: '771977 · Self - The Doobie Brothers TV shows (0) No credits available.