Callan (film) Callan (film) Callan is an exciting 1974 British thriller film directed by Don Sharp and starring Edward Woodward, Eric Porter and Carl Möhner. It was based on the ITV television series "Callan" which ran from 1967 to 1972. David Callan (Edward Woodward), a leading intelligence agent/assassin in the employment of the S.I.S., was forced into retirement when he lost his nerve. Now, he is called back into service to handle the assassination of Schneider, a German businessman. Colonel Hunter (Eric Porter), his former employer, promises Callan that he'll be returned to active status as long as he follows his orders.
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