Arthur Edward George Themen is a British jazz saxophonist and formerly orthopaedic surgeon. Critic John Fordham has described him as "an appealing presence on the British jazz circuit for over 40 years.... Originally a Dexter Gordon and Sonny Rollins disciple ... Themen has proved himself remarkably attentive to the saxophone styles of subsequent generations."

Alan Warren Haig was an American jazz pianist, best known as one of the pioneers of bebop.