Her dad is British and her mom is American from Arizona.
She was a beneficiary of the Edinburgh International Film Festival Trailblazer Award.
She first appeared in the thriller Bon Voyage and Supernatural series Afterlife.
In 2013, Beecham featured as Caro Allingham in The Village.
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In 2017 she played the title character in the film Daphne, for which she got the nomination for Best Actress Award at the British Independent Film Awards.