Derek Martinus had worked on six Doctor Who serials between the years of 1965 to 1970 which included adventures with all three of the first Doctors. He helmed The Tenth Planet, which introduced fans to the Cybermen, as well as Spearhead from Space, known for marking Jon Pertwees TARDIS debut and for being the first Doctor Who story to be filmed in colour. He passed away on 27th March at the age of 82.