Trev Bailey

 was Albie Sinclair's boyfriend. He was a guitarist in a band and wrote songs with him. Jack Harper sent him back in time using a Weeping Angel to deliver a letter to his father. Albie was reunited with Trev in the 1890s and stayed with George Litefoot. The Doctor gave them a tape recorder to send messages to Helen through time. (AUDIO: Albie's Angels)