The TARDIS arrives in London in 1966 and the First Doctor and Dodo visit the Post Office Tower. There they meet Professor Brett, whose revolutionary new computer WOTAN (Will Operating Thought ANalogue) can actually think for itself and is shortly to be linked up to other major computers around the world — a project overseen by civil servant Sir Charles Summer.

The Doctor

Dodo Chaplet

Polly

Ben Jackson

Professor Brett

Professor Krimpton

Sir Charles Summer

Major Green

War Machine Operator/The Voice of WOTAN

Himself
July 16, 1966

The Doctor

Dodo Chaplet

Polly

Ben Jackson

Professor Brett

Professor Krimpton

Sir Charles Summer

Major Green

War Machine Operator/The Voice of WOTAN

Himself

