The Monkey

Theo James plays the roles of Hal and Bill, central characters in the film.

Tatiana Maslany portrays Lois Shelburn, a significant character in the storyline.

Christian Convery plays Young Hal and Young Bill, depicting the childhood of the main characters.

Colin O'Brien takes on the role of Petey, a character that adds depth to the narrative.

Adam Scott plays Capt. Petey Shelburn, contributing to the story's conflict.

Elijah Wood portrays Ted Hammerman, a pivotal character within the plot.

Rohan Campbell plays Thrasher and Ricky, adding complexity to the character dynamics.

Sarah Levy plays Aunt Ida, a character who influences the main characters' journey.

Osgood Perkins portrays Uncle Chip, providing familial context in the film.

Nicco Del Rio takes on the role of Rookie Priest, a character that represents a moral compass.

Zia Newton plays Dwayne, a supporting character in the film.

Kingston Chan portrays Pepper, contributing to the storyline through their interactions.