Kenney began her acting career at the age of five together with her best friend Ciera Gill. She first appeared in a short movie, Lyre Liar. After some years, she appeared in an American period crime drama television series, Boardwalk Empire, which was created by Terence Winter. The co-stars of this series are Steve Buscemi, Michael Pitt, Michael Shannon, and Jeffrey Wright.
After a couple of years, Kenney voice-acted in American 3D computer-animated action-adventure movie, Epic, which was directed by Chris Wedge. The movie stars the voice of actors Colin Farrell, Josh Hutcherson, Amanda Seyfried, and Christoph Waltz. The movie became a huge hit and made a collection of $268.4 million at the box office against the budget of $93 million.
Likewise, Kenney appeared in numerous movies and television series like Bittersweet, A (Not So) Civil Union, Three Little Puppets, My Love Affair with Marriage, Green Apples, Day Camp, Shameless, and Roseanne.
Kenney is an American by nationality and belongs to white ethnicity. Currently, She is in a relationship with Aiden J. Alexander. The couple is dating each other for several years. She seems happy with her boyfriend and there are no signs of break up in their relationship. Since they are not married, there is no point talking about their divorce. They also do not have any children.
Kenney is also active on social networking sites like Twitter, Instagram, and Facebook. She has more than 260K followers on her Twitter account and over 1.011K followers on her Instagram account. She regularly updates her social account with a positive message for young talents.
Kenney earns a huge amount of money from her professional acting career. She received $12,000 per episode (as a salary) during the first season of Shameless series. According to some source, her current net worth is estimated to be $1 million.