(Carolyn) Jane Onslow How (born 21 December 1951) is a British actress with a range of television credits.
She is best known for her role as Jan Hammond, the mistress of Den Watts in EastEnders. Howe appeared in the programme regularly from 1986 to 1987 and also made brief return appearances in 2002 and 2003, the latter leading up to Den's return to the show.
Other roles include another famous mistress, Camilla Parker-Bowles, in the TV mini-drama Charles and Diana: Unhappily Ever After (1992). She has also appeared in the BBC production of The Citadel, as well as in the sitcom Don't Wait Up with Nigel Havers. Her first television credit was in the 1973 Doctor Who story Planet of the Daleks.
