Cast of Big Fat Liar

Big Fat Liar features a talented cast bringing the characters to life. The movie stars Frankie Muniz as Jason Shepherd, Paul Giamatti as Marty Wolf, Amanda Bynes as Kaylee, Amanda Detmer as Monty Kirkham, Sandra Oh as Mrs. Caldwell, Russell Hornsby as Marcus Duncan, Michael Bryan French as Harry Shepherd, and Christine Tucci as Carol Shepherd. The most popular cast member today is Frankie Muniz, Jason Shepherd.