Pike was born in London, England, the only child of concert musicians Caroline and Julian Pike.[1] She attended Badminton School in Bristol before studying English Literature at Wadham College, Oxford. While there, she studied under both Bernard O’Donoghue, the Whitbread prize-winning poet, and Robert J.C. Young, the eminent post-colonial theorist. An able student, she achieved a First Class in her first year examinations (known as Moderations) and, after taking a year off to pursue her career, returned to complete her degree in 2001, gaining an Upper Second.

She garnered stage experience in student productions, including David Hare’s Skylight, Arthur Miller’s All My Sons, and several plays by Shakespeare. While appearing in a production of Romeo and Juliet at the National Youth Theatre, she was noticed by an agent who helped her embark upon a professional career.