Mark Wahlberg
Captain Leo Davidson
Michael Clarke Duncan
Attar
Cary-Hiroyuki Tagawa
Krull
Chris Ellis
Commander Karl Vasich
Anne Ramsay
Lt. Col. Grace Alexander
Andrea Grano
Major Maria Cooper
Michael Jace
Major Frank Santos
Michael Wiseman
Specialist Hansen
Deep Roy
Gorilla Kid / Thade's Niece
Chad Bannon
Red Ape Soldier / Man Hunt Ape
Kevin Grevioux
Limbo's 1st Handler / Ape Commander / 2nd Ape Soldier
Isaac C. Singleton Jr.
Limbo's 2nd Handler / 1st Ape Soldier
John Alexander
Ape Dinner Guest / Old Man Servant / Old Ape #1
Jay Caputo
1st Ape Teenager / 2nd Ape Soldier
Philip Tan
2nd Ape Teenager / Gossiping Male Ape
Callie Croughwell
Little Human Girl
Cameron Croughwell
Ape Soccer Kid
Joshua Croughwell
Ape Soccer Kid
Hannah Peitzman Myers
Ape Soccer Kid
Molly Peitzman
Ape Soccer Kid
Jesse Tipton
Ape Soccer Kid
Shane Habberstad
Ape Soccer Kid
Linda Harrison
Woman in Cart
Eddie Adams
Friend at Leo's Party
Todd Babcock
Friend at Leo's Party
Lorenzo Callender
Friend at Leo's Party
Shonda Farr
Friend at Leo's Party
Kam Heskin
Friend at Leo's Party
Jim Holmes
Friend at Leo's Party
Todd Kimsey
Friend at Leo's Party
Candace Kroslak
Friend at Leo's Party
Joanna Krupa
Friend at Leo's Party
Lisa Lackey
Friend at Leo's Party
Mark Christopher Lawrence
Friend at Leo's Party
Melody Perkins
Friend at Leo's Party
Tate Taylor
Friend at Leo's Party
Jonna Giovanna
Friend at Leo's Party
Charlton Heston
Zaius (uncredited)