All'età di tredici anni, i genitori di Ian divorziarono e crebbe con la madre, iscrivendosi a una scuola superiore cattolica.

Nello stesso anno, l'attore interpreta Paul Denton, un giovane bisessuale, nella trasposizione cinematografica del romanzo di Bret Easton Ellis Le regole dell'attrazione, affiancato da James Van Der Beek, Shannyn Sossamon e Jessica Biel, per la regia di Roger Avary.

He's best known for his roles on TV show What About Brian and movies Blue Crush and Legally Blonde. Davis was born on May 8, 1978 in Salt Lake City, Utah.

He attended Woods Cross High School in Woods Cross, Utah where he was raised.

Peyton has not talked publicly about her religious beliefs. Portraying Emma Ross on the Disney Channel comedy series, Jessie (2011-Present). List’s debut film was 2004 American superhero film Spider-Man 2 where she played the role as a little girl playing on the steps.

In 2002, she debuted with American television soap opera As the World Turns by guest appearing in it for her role as little girl in diner.