Mark Harmon as Ryan
Fun Fact: Playing Lohan's soon-to-be stepdad in Freaky Friday, Harmon is most known for his work on NCIS.
Ryan Malgarini as Harry Coleman
Fun Fact: Malgarini played Lohan's annoying little brother in Freaky Friday, and has also acted in the popular series Bones.
Christina Vidal as Maddie
Fun Fact: Other than being Lohan's best friend in Freaky Friday, Vidal is best known for her lead role in Nickelodeon series Taina.
Julie Gonzalo as Stacey Hinkhouse
Fun Fact: Playing the popular girl in Freaky Friday, Gonzalo now plays Pamela Rebecca Barnes in the TNT series Dallas.
Stephen Tobolowsky as Mr. Bates
Fun Fact: Tobolowsky played Lohan's unfair English teacher in Freaky Friday, but is most known for his roles in Groundhog Day and Memento.