Alison Pill, born November 27, 1985, in Toronto, Ontario, Canada, is a Canadian actress known for her work in film, television, and theater. She has built a reputation for playing intelligent, complex characters across a variety of genres.

     Pill was raised in Toronto and attended Vaughan Road Academy, where she was part of the Interact program, designed for students interested in dance, music, athletics, and theater. Her father, a professional engineer, is of Estonian descent. Pill developed an early passion for acting and joined the Toronto Children's Chorus, where she was chosen to narrate a performance. This experience solidified her desire to pursue acting professionally.

     Pill began acting at the age of 12, landing roles in TV movies and series. She appeared in Kung Fu: The Legend Continues, The New Ghostwriter Mysteries, and voiced Cornflower in the animated series Redwall (1999–2001). By her teenage years, she had already starred in multiple Canadian films, including The Life Before This (1999) and Jacob Two Two Meets the Hooded Fang (1999).

     Pill’s career gained momentum in the early 2000s, with roles in Confessions of a Teenage Drama Queen (2004) and Dan in Real Life (2007). She made her Broadway debut in The Lieutenant of Inishmore (2006), earning a Tony Award nomination for Best Featured Actress in a Play. She continued her theater success with Blackbird (2007), Mauritius (2007), The Miracle Worker (2010), and Three Tall Women (2018).

     Pill has starred in numerous acclaimed films, including Milk (2008), Scott Pilgrim vs. the World (2010), Midnight in Paris (2011), Hail, Caesar! (2016), and Vice (2018). She gained widespread recognition for her role as Maggie Jordan in The Newsroom (2012–2014), an HBO drama created by Aaron Sorkin.
Her television credits also include In Treatment (2009), The Pillars of the Earth (2010), American Horror Story: Cult (2017), Devs (2020), and Them (2021). From 2020 to 2022, she portrayed Dr. Agnes Jurati in Star Trek: Picard, further solidifying her presence in science fiction.

     Pill had been previously engaged to actor Jay Baruchel (2011–2013). In 2015, she married Joshua Leonard, an actor and filmmaker. The couple welcomed their daughter, Wilder Grace Leonard, in 2016.