Jemima Rooper voiced Izzy Sinclair in the Big Finish Doctor Who audio story Izzy's Story.
Rooper began acting as a child. Her mother is journalist Alison Rooper. [1]
Rooper's performance as Izzy was praised by Alan Barnes, creator of the character and writer of Izzy's Story. Barnes said "she 'got' the character the second she spoke her first line, absolutely - walking the line between 'utterly adorable, give her a hug' and 'slightly irritating nerd' like she was born to play it!" (VOR 5)