<P> Malcolm accompanies Sherry and Trent to church, where the Reverend calls on Malcolm to give his testimony . Malcolm attempts to influence Sherry and Trent by giving them his testimony about the importance of not keeping secrets . When Malcolm, Sherry, and Trent return to Big Momma's house, they discover a surprise birthday party for Big Momma . During the party, the real Big Momma returns home prematurely, whom John tries to stall her . Malcolm accidentally finds the stolen money hidden in Trent's footlocker . Sherry tells Malcolm the real story: Lester had wooed Sherry so he could steal her keys to gain access to the bank vault; Sherry did not tell anyone about her stolen keys out of fear of getting fired . John quietly tells Nolan that the real Big Momma is back, at which point Nolan accidentally locks Malcolm out of the house, believing he is the real Big Momma . When Lester arrives after tracking down Sherry, Malcolm breaks through the window and fights Lester, causing confusion among the partygoers as they see two Big Mommas at once . Lester shoots John in his right shoulder and rips Malcolm's mask during a fistfight, which reveals his identity . Nonetheless, Malcolm subdues Lester by knocking him out through the window . Sherry and Trent are heartbroken to realize that Malcolm was an FBI agent all along, and they refuse to speak to him . The police arrest Lester and paramedics takes John to the hospital to heal his right shoulder . </P> <P> On Sunday morning, Malcolm goes to church to testify Sherry, Trent, and Big Momma . Malcolm delivers his confession and heartfelt speech to Sherry and Trent, and later admits that he genuinely loves them . Big Momma forgives Malcolm, and the crowd cheers as Malcolm and Sherry kiss . The crowd celebrates as Big Momma and the choir sings "Oh Happy Day" during the film's closing credits . </P> <Ul> <Li> Martin Lawrence as Agent Malcolm Turner / Big Momma </Li> <Li> Nia Long as Sherry Pierce </Li> <Li> Paul Giamatti as Agent John Patterson, Malcolm's undercover partner . </Li> <Li> Terrence Howard as Lester Vesco, Sherry's ex-boyfriend . </Li> <Li> Anthony Anderson as Nolan, a dim - witted security guard . </Li> <Li> Jascha Washington as Trent Pierce, Sherry's 10 - year - old son . </Li> <Li> Ella Mitchell as Hattie Mae Pierce (Big Momma), Sherry's long lost, overweight, elderly Southern grandmother . </Li> <Li> Phyllis Applegate as Sadie, Big Momma's nosy and jealous neighbor </Li> <Li> Starletta DuPois as Miss Patterson </Li> <Li> Tichina Arnold as Ritha, Nolan's younger sister . </Li> <Li> Octavia Spencer as Twila </Li> <Li> Nicole Prescott as Lena </Li> <Li> Cedric the Entertainer as the Reverend </Li> <Li> Carl Wright as Ben Rawley, Big Momma's annoying, lecherous boyfriend . </Li> <Li> Aldis Hodge as Basketball teen </Li> </Ul> <Li> Martin Lawrence as Agent Malcolm Turner / Big Momma </Li>

Who played the real big momma in big mommas house