In 2006, she was a recurring character through seasons two and three of The Suite Life of Zack & Cody as Holly, a little girl whose father is a con man and once stayed at the Tipton.

[5] Hanratty played a young version of Leelee Sobieski's character Jody Balaban in the romantic comedy film Finding Bliss directed by Julie Davis.

[6] Hanratty starred alongside Brooke Shields, Aidan Quinn and Kris Kristofferson in the adventure film The Greening of Whitney Brown, which was released on November 11, 2011.

[10] In 2017, Hanratty starred in the action comedy movie Bad Kids of Crestview Academy portraying Siouxsie Hess, which was released on January 13, 2017.

Hanratty was an ensemble cast in Showtime's thriller drama series Yellowjackets portraying a teen version of Christina Ricci's character Misty Quigley.