She may be best known as Samantha Stewart, Foyle's assistant in the Second World War era detective series Foyle's War.
Honeysuckle played Viola in a Theatre Royal, Plymouth, touring production of Twelfth Night from September to December, 2005, opposite Matthew Kelly as Malvolio.
She appeared in a 14-minute film from the National Film and Television School called 77. It's about a teenage couple in a Sussex village in 1977, and Honeysuckle's part is called Ruth. The film was shown at an event called the Aspen Shortsfest in 1998.
In a stage production of Hamlet at the Old Fire Station, Oxford, in 1998, Honeysuckle played the part of Hamlet's friend Rosencrantz, who is usually a man, but in this production Rosencrantz was a woman.
Honeysuckle took part in some of the comedy sketches in BBC TV's December 2000 Christmas Special of Victoria Wood With All The Trimmings.
She was reported to be dating the actor Andrew N. Robertson.
Honeysuckle read (or majored in, as they say in the U.S.) English literature at Oxford University and got a second class honours degree. She now has her M.A.
In 2004, she was nominated for a National Television Award (Most Popular Newcomer) for Foyle's War (2002).
Honeysuckle was a child actress - her first screen appearance was in the TV show Goggle Eyes (1993) when she was thirteen.
Her earliest years were spent in South Wales, where she was born, but she later moved to London.
Her parents are named Robin and Susan Weeks.
While spending a year in Florence to study the history of art, she wrote a play and produced it in a monastery.
She has a sister called Perdita Weeks (born 1985) and a brother called Rollo Weeks (born 1987), both actors.
She was educated at Roedean School and Pembroke College, Oxford.
She starred in a commercial for Tango Clear.
Honeysuckle Weeks: (on her fling with Hugh Grant) He was charming, funny and sharp, not the bumbling idiot of his films. Hugh is famed for his roving eye, so I never took it too seriously and we have since parted.
Honeysuckle Weeks: I think to be a good actor you need either a good experience of life or education, or both.
Honeysuckle Weeks: I have been given stick about my name, but everyone is teased about something. It can sometimes be awkward, for instance when I am introduced to someone in a club. I have occasionally said my name is Holly.