[8] She graduated with a BA in theatre and linguistics,[9][10][11] and after visiting Europe, moved to New York City to pursue acting.

Keranen's first voice-over audition for 4Kids was April O'Neil in the 2003 TV series Teenage Mutant Ninja Turtles.

She had a recurring role as Kate Harper in the Fringe TV series, and is a member of the Sacred Fools Theater Company.

[13] On July 23, 2011, she and fellow voice actress Cristina Vee were panelists at San Diego Comic-Con for Namco Bandai's preview of the Tekken: Blood Vengeance film.

[1] In 2016, she provided the voice of Alya Césaire, Marinette Dupain-Cheng's best friend, in the French cartoon Miraculous: Tales of Ladybug & Cat Noir, which ran on Nickelodeon.