Heather Jean Chasen (20 July 1927 – 22 May 2020) was an English actress. Chasen was known for her roles in soap operas; playing Valerie Pollard in the ITV soap opera Crossroads from 1982–86 and guest roles in Doctors, Holby City and Family Affairs.
Chasen also played many roles in BBC Radio 2's The Navy Lark from 1959 to 1977, and appeared in the television series Marked Personal from 1973 to 1974. She played Lydia Simmonds in the BBC soap opera EastEnders. In 2012, she appeared in Les Misérables.
Chasen was born to English parents in Singapore. She studied at the Royal Academy of the Dramatic Art. Chasen died on 22 May 2020, aged 92.