Kane began performing at the age of three, starting with dance and then moving to singing and acting. At the age of six, she started working professionally in some print ads, later moving to TV spots and works in various children's TV shows. In August 2006, Kane was picked to join the cast of Neighbours as Lolly Allen after she entered a competition run by Dolly magazine. She was given a three-month contract with the show. Her friends convinced her to enter the competition, but she did not think she was actually going to get the role. In December 2006, Kane announced that she would be leaving the show after her contract was not renewed. At the time of the announcement, Kane had not yet appeared as Lolly. In 2008, Kane was nominated for a Logie Award for Most Popular New Female Talent for her performance as Lolly. From March to December 2009, Kane portrayed on Power Rangers RPM, part of the long-running Power Rangers franchise. In April 2010, Kane starred in the television film Secrets of the Mountain on NBC. In 2010, she also starred in the Hulu series Pretty Tough, composed of 20 episodes and based on the by the same name written by Li Tigelaar. In 2010, Kane travelled to attend an audition for Cartoon Network's first live-action series Unnatural History, for the role of Maggie Winnock. Italia Ricci and she were the actresses selected for the casting; the role later went to Italia. In 2012, she portrayed Aubrey in the movie Goats. On 28 November 2012 it was announced that Kane had joined the cast of Teen Wolf as Cora Hale. In February 2013, Kane was cast as Mary, Queen of Scots in the CW period drama series Reign. The same year, she appeared in the successful thriller film The Purge. Kane also appears in ' as a human. In 2014, Kane appeared in horror movieThe Devil's Hand as Ruth. She originally auditioned for Alycia Debnam-Carey's role, but producers thought she was not right for the part, so they offered her Ruth, who got more along with her personality. Kane starred in Scott Speer's short thriller film Realm in 2015, which is set to become a full-length film with a release date in 2016. In June 2016, Kane stars in the third season of Dragons: Race to the Edge in the role of Mala, Defender of the Wing. In July 2017, Kane joined the hit ABC series Once Upon A Time in a recurring role for its rebooted season seven. Kane was one of five actresses to join the series for its new season in starring and recurring roles, following the exits of six key cast members at the end of season six. She played one of the antagonists, Drizella, one of Cinderella's wicked stepsisters. Adelaide's final episode in Once Upon a Time was "Sisterhood". In September 2019, Kane was announced as one of the cast members of Into the Darks second Halloween installment, Uncanny Annie, which premiered on Hulu the following month. She did some coaching sessions to prepare and soften up for the role. Before she was cast for Uncanny Annie, Kane was supposed to appear in Into the Dark's first installment The Body, but the character director Paul Davis wanted her for was cut right before the shooting draft was locked. In October 2019, Kane joined the cast of CBS's SEAL Team as a guest star in season three. In March 2020, Kane joined the main cast of sci-fi action movie Cosmic Sin. The same month, Adelaide made a cameo in NBC's ''This Is Usseason four finale as Hailey Damon, Toby Damon and Kate Pearson's adopted daughter.
Personal life
Kane was in a relationship with American actor Connor Paolo from 2011 to 2013. She dated her Reign co-star Sean Teale for about a year, between 2014 and 2015. Kane started dating entrepreneur Joey Pauline in May 2017; they moved in together later that year. The couple split in June 2019. Since July 2019, Kane is in a relationship with her Into the Dark co-star Jacques Colimon. Kane suffers from generalized anxiety disorder, and has spoken up multiple times about the importance to break the stigma surrounding mental illness.
