Ed Asner

Character: Mr. Harris (voice) (as Ed Asner)

Angela Bassett

Character: Miles' Mom (voice)

Lucas Black

Character: Randy (voice)

Theodore Borders

Character: Martin at Age 12 (voice)

LeVar Burton

Character: Martin at Age 26 (voice) (as Levar Burton)

Jessica Garcia

Character: Maria (voice)

Danny Glover

Character: Train Conductor (voice)

Whoopi Goldberg

Character: Mrs. Peck (voice)

Samuel L. Jackson

Character: Turner (voice)

James Earl Jones

Character: Daddy King (voice)

Ashley Judd

Character: Mrs. Dale (voice)

Richard Kind

Character: Mr. Willis (voice)

John Travolta

Character: Kyle's Dad (voice)

Jaleel White

Character: Martin at Age 15 (voice)

Susan Sarandon

Character: Mrs. Clark (voice)

Oprah Winfrey

Character: Coretta Scott King (voice)

Frank Welker

Character: Bull Connor / Chihuahua (voice)

Yolanda King

Character: Christine King (voice)

Dexter King

Character: Martin - Age 34 (voice) (as Dexter Scott King)

Zachary Leigh

Character: Kyle (voice)

Robert Ri'chard

Character: Miles (voice)

Adam Wylie

Character: Sam Dale (voice)

Jess Harnell

Character: Reporter #1 / Demonstrator (voice)

Joe Lala

Character: Reporter #2 / Demonstrator (voice)

John Wesley

Character: Man / Demonstrator (voice)

Elizabeth Primm

Character: Old Woman / Demonstrator (voice)

Jodi Carlisle

Character: