David Banks is a stage and television actor and occasional writer and producer. He is best known to Doctor Who fans for his portrayal of the Cyber-Leader in Earthshock, The Five Doctors, Attack of the Cybermen and Silver Nemesis, before returning to the role 30 years later in the Big Finish Productions audio Hour of the Cybermen. Banks also played Karl in the stage production The Ultimate Adventure, and its audio adaptation. As Jon Pertwee's understudy in the production, he played the Doctor for two performances when Pertwee fell ill.
He also wrote Iceberg, a novel in the Virgin New Adventures which featured the Cybermen. He wrote the part non-fiction, part speculative Doctor Who: Cybermen, the in-universe portions of which were adapted for audio (with Banks' narration) as The ArcHive Tapes.
Banks also produced a series of audiocassette interviews with Doctor Who actors including The Ultimate Interview (with Colin Baker), Pertwee in Person (with Jon Pertwee), and Who's the Real McCoy? with Sylvester McCoy.