Alison Pill is a Canadian actress. A former child actress, Pill began her career at age 12, appearing in numerous projects before transitioning to adult roles with a breakthrough role in the television series The Book of Daniel (2006). That same year, she made her Broadway debut in The Lieutenant of Inishmore (2006) earning a Tony Award for Best Featured Actress in a Play nomination. Her other notable stage roles include in Blackbird (2007), Mauritius (2007), The Miracle Worker (2010), The House of Blue Leaves (2011), and Three Tall Women (2018).

The Lieutenant of Inishmore is a black comedy by Martin McDonagh, in which the 'mad' leader of an Irish National Liberation Army splinter group discovers that his cat has been killed. It has been produced twice in the West End and on Broadway, where it received a Tony Award nomination for Best Play. In 2014, The Lieutenant of Inishmore was ranked in The Daily Telegraph as one of the 15 greatest plays ever written.