Tamsin Egerton

Egerton was born on 26 November 1988 in Surrey, to Michael Dick and his wife Nicola Egerton. Her father is a businessman.

She began her acting career at age 6, following her older half-sister in a local youth theatre. Egerton attended the independent Ditcham Park School near Petersfield in Hampshire.

In 2001, Egerton began acting professionally when she played Mary Lennox in a Royal Shakespeare Company musical production of The Secret Garden, and appeared as young Morgaine in the television miniseries The Mists of Avalon. She soon chose to shorten her surname to Egerton. The following year she played Princess Elenora in the children's television series Sir Gadabout: The Worst Knight in the Land.

Egerton's film debut was as Holly Goodfellow, a precocious vicar's daughter in the black comedy Keeping Mum (2005). Her breakthrough role was as Chelsea, a member of a posh clique in St. Trinian's (2007). She reprised the role in its sequel St Trinian's II: The Legend of Fritton's Gold in 2009. Two years later, she starred in Chalet Girl with Felicity Jones, Ed Westwick, and Bill Nighy. In the same year she portrayed Guinevere in the historical fantasy drama series Camelot. In 2013, Egerton appeared in Michael Winterbottom's biopic The Look of Love which was based on the life of strip-club owner Paul Raymond.

Egerton has been in a long-term relationship with American actor Josh Hartnett since 2012. They have a daughter (born 2015), a second child (born 2017), a third child (born 2019), and a fourth child (2024). They married in November 2021, and live in the Surrey–Sussex border region, in southeast England.