Cameron Seely

Seely played Helen Barnum in the 2017 musical film The Greatest Showman. The role became one of her best-known film performances.

She also performed "A Million Dreams (Reprise)" for the film's soundtrack, adding a musical credit to her work in the production.

In the 2018 animated film The Grinch, Seely provided the voice of Cindy-Lou Who. The performance established her as the voice of one of the film's central child characters.

Seely participated in interviews connected with the film, including discussions of her experience making it and an interview segment involving Benedict Cumberbatch and the Grinch cast.

Seely played Mary on the TV Land series The Jim Gaffigan Show from 2015 to 2016. She appeared in 22 episodes.

Her role as Mary was described as her first major acting role, making the series an early milestone in her screen career.

Seely played Annie Adams in three episodes of Madam Secretary between 2016 and 2019. She also appeared as Izzy Rush in the 2018 television film Christmas Break-In.

Her other listed work includes an appearance as a child in a Food Lion commercial featuring a father-and-daughter pun-making family.