Selma Blair
Vi
Leo Fitzpatrick
Marcus
Robert Wisdom
Mr. Scott
Aleksa Palladino
Catherine
Mark Webber
Scooby Livingston
Paul Giamatti
Toby Oxman
John Goodman
Marty Livingston
Jonathan Osser
Mikey Livingston
Lupe Ontiveros
Consuelo
Julie Hagerty
Fern Livingston
Noah Fleiss
Brady Livingston
Maria Thayer
Ami
Angela Goethals
Elli
Xander Berkeley
Mr. DeMarco
Devorah Rose
Lucy
Nancy Anne Ridder
Joyce
Steve Rosen
Ethan
Mary Lynn Rajskub
Melinda
Tina Holmes
Sue
Mike Schank
Mike the Cameraman
Jessica Dunphy
Cheryl
Nick Maltes
Esposito
Steve Railsback
Mr. Kirk
Crista Moore
Elizabeth St. Clair
Franka Potente
Toby's Editor
Andrew Marantz
Stanley
Conan O'Brien
Himself
Frederick B. Owens
Football Coach
Barry Jordan
Dr. Barry Jordan
Robin Goodman
Dr. Robin Goodman
Eric Nieves
Dave
Marisa Redanty
Onlooker #1
Ilana Levine
Onlooker #2
Jennifer Elise Cox
Musical Theatre Actress (uncredited)
Pat Kiernan
TV News Announcer (voice) (uncredited)
Gina Priano
Student (uncredited)
Tom Schimmels
Man in Toby's Apartment (uncredited)
Jim Titus
Football Player (uncredited)