Joseph Cross

as Augusten Burroughs

Annette Bening

as Deirdre Burroughs

Brian Cox

as Dr. Finch

Gwyneth Paltrow

as Hope Finch

Joseph Fiennes

as Neil Bookman

Evan Rachel Wood

as Natalie Finch

Alec Baldwin

as Norman Burroughs

Jill Clayburgh

as Agnes Finch