Michael Hossack. Michael Hossack was >> in The Doobie Brothers - Live at Wolf Trap as 'Himself - Drums, Percussion'.Tom Johnston. Tom Johnston was >> in The Doobie Brothers - Live at Wolf Trap as 'Himself - Guitars, Vocals'.Keith Knudsen. Keith Knudsen was >> in The Doobie Brothers - Live at Wolf Trap as 'Himself - Drums, Percussion, Vocals'.John McFee. John McFee was >> in The Doobie Brothers - Live at Wolf Trap as 'Himself - Guitars, Dobro, Pedal steel guitar, Harmonica, Violin, Mandolin, Vocals'.Patrick Simmons. Patrick Simmons was >> in The Doobie Brothers - Live at Wolf Trap as 'Himself - Guitars, Banjo, Vocals'.Guy Allison. Guy Allison was >> in The Doobie Brothers - Live at Wolf Trap as 'Himself - Keyboards, Vocals, Background vocals'.Marc Russo. Marc Russo was >> in The Doobie Brothers - Live at Wolf Trap as 'Himself - Saxophone, Horn arrangements'.Skylark. Skylark was >> in The Doobie Brothers - Live at Wolf Trap as 'Himself - Bass, Background Vocals'.M. B. Gordy. M. B. Gordy was >> in The Doobie Brothers - Live at Wolf Trap as 'Himself - Percussion'.Marvin McFadden. Marvin McFadden was >> in The Doobie Brothers - Live at Wolf Trap as 'Himself - Trumpet'.Mic Gillette. Mic Gillette was >> in The Doobie Brothers - Live at Wolf Trap as 'Himself - Trombone, Trumpet'.Michael Drumm. Michael Drumm was >> in The Doobie Brothers - Live at Wolf Trap as 'Producer, Director'Andrea Allen. Andrea Allen was >> in The Doobie Brothers - Live at Wolf Trap as 'Producer'