Overview
- Millie Gibson reprises her role as Ruby Sunday in 'Lucky Day,' marking her full return to 'Doctor Who' after a brief 2024 Christmas special cameo.
- Ruby grapples with PTSD from her time traveling with the Doctor, exploring emotional recovery in a layered and mature storyline.
- Jonah Hauer-King debuts as Conrad, Ruby's love interest and a Doctor superfan with a mysterious connection to the Time Lord.
- Ruby joins UNIT, finding a support network with returning characters like Kate Stewart and Shirley Bingham while confronting alien threats.
- The episode features a new monster, the Shreek, and costume design nods to David Tennant's iconic Doctor, blending continuity with fresh narratives.