Wallis Day
Personal details
  • Born:
    • Birthday: 1994-09-20
    • Born Place: London, England, UK
  • Also Known As:

    Ουάλις Ντέι

Wallis Day

Wallis Lily Day (born 20 September 1994 in London, England) is a British actress and model renowned for her dynamic, action-oriented roles across television and film. She began modeling at 13 with Models1 to fund her dramatic training, attending the Sylvia Young Theatre School as well as ArtsEd in London . Her breakout came in 2012 when she portrayed Holly Cunningham on the Channel 4 soap Hollyoaks, and followed it with roles in ITV's Jekyll & Hyde as Olalla and on E!'s The Royals as Angie. She then established herself in genre television, playing Nyssa‑Vex in Syfy’s Krypton (2018–19), followed by Agent Shin in the sci‑fi thriller Infinite (2021) alongside Mark Wahlberg. Wallis made her U.S. network debut in 2021 as the recast Kate Kane/Circe Sionis in CW’s Batwoman, showcasing her stunt skills and physicality—undergirded by her training in Muay Thai, boxing, and mixed martial arts.She also played Gigi in Netflix’s Sex/Life Season 2 and is set to portray Dark Annisia in the upcoming film Red Sonja (2025). Off-screen, Wallis is a dedicated athlete and vegan advocate who initially trained as a competitive swimmer with Olympic aspirations before pivoting to acting. She embraces writing—having authored a psychological thriller—and is committed to doing her own stunts, as well as pursuing environmental and social causes .

Person History