Isabella Blake-Thomas is an English actress. She first starred in the BBC children’s show Green Balloon Club in the late 2000s. She next made guest appearances in a few TV shows before appearing in the TV movie Red Faction: Origins. She later had her first movie role as Izzie in the comedy film Johnny English Reborn. Her next role was in the TV film Mr. Stink. She went on to have one-time parts in Midsomer Murders, Doctor Who, The White Queen, and The Smoke. She next guest-starred in Da Vinci’s Demons. In 2016, she played the Young Zelena in the American series Once Upon a Time. She’ll star in the upcoming Disney+ film Secret Society of Second Born Royals.