4 May 1912: birth of Peter Bathurst, who played Hensell in The Power of the Daleks (1966-67) and Chinn in The Claws of Axos (1971).
ii) broadcast anniversaries
4 May 1968: broadcast of second episode of The Wheel in Space; first appearance of Wendy Padbury as Zoe. The Doctor is incapacitated and Jamie makes a new friend.
4 May 1974: broadcast of first episode of Planet of the Spiders. The Doctor investigates a clairvoyant; Mike Yates and Sarah Jane investigate a meditation cult under the control of spiders.