Callan (TV series) Callan (TV series) Callan is a British action/drama television series created by James Mitchell, first airing between 1967 and 1972. It starred Edward Woodward as David Callan, an agent of a state secret service dealing with internal security threats to the United Kingdom. Though portrayed as having responsibilities similar to those of the real-life MI5, Callan's fictional "Section" has "carte blanche" to use the most ruthless of methods. In the storylines interrogation is by means of torture, while extrajudicial killings are so routine they have a colour-coded filing system. With the possible exception of "La Femme Nikita", no TV series
H. G. Callan H. G. Callan Harold Garnet Callan FRS FRSE (15 March 1917, Maidenhead – 3 November 1993), known as Mick Callan, was an English zoologist and cytologist. He is especially remembered for his work on Lampbrush chromosomes. see Callan was born in Maidenhead in Berkshire the son of Garnet George Callan, a naval architect, and Winifred Edith Brazier, a teacher. He was educated at King's College School in Wimbledon, and then won a place at St John's College at Oxford University graduating with a First Class MA in Zoology in 1938. After initially finding employment at the John Innes Institute in