Merin Monteath
From Tardis Wiki, the free Doctor Who reference
Merin Monteath played one of the shapes of Prisoner Zero and was credited as Child 2 in the Doctor Who story The Eleventh Hour.
She was also considered for the role of Clara in AUDIO: The Man at the End of the Garden, who was eventually played by her sister, Eden. (BFX: Jago & Litefoot: Series Three)
