She appeared as Professor Docherty in the third-season finale of Doctor Who entitled "Last of the Time Lords". Haddington's other TV credits include Life Begins, Foyle's War as Hilda Pierce, A&E, Cracker, Holby City, Wire in the Blood, Coronation Street, Midsomer Murders, The Musketeers, Taggart, Scott & Bailey and The Bill in which she played two different roles, the first in 1997 and the second in 2007.