Cast of Tadpole

Aaron Stanford portrays Oscar Grubman, a 15-year-old with a crush on his stepmother, navigating the complexities of love and maturity.

Sigourney Weaver plays Eve Grubman, Oscar's sophisticated and attractive stepmother who becomes the object of his affections.

John Ritter appears as Stanley Grubman, Oscar's father, who is unaware of the dynamics unfolding between his son and his wife.

Bebe Neuwirth takes on the role of Diane Lodder, a friend of the family who becomes romantically involved with Oscar.

Robert Iler plays Charlie, a friend and classmate of Oscar Grubman's, providing a contrast to Oscar’s precocity.

Adam LeFevre is Phil, a character who contributes to the tapestry of adults in Oscar's life.

Peter Appel portrays Jimmy, the doorman at the Grubman's Manhattan apartment, who interacts with the characters of the story.

Alicia Van Couvering plays Daphne Tisch, a young woman involved in the broader social circle of the film's protagonists.

Kate Mara appears as Miranda Spear, a schoolmate who challenges Oscar on different fronts.

Ron Rifkin is Professor Tisch, an academic who adds depth to the intellectual backdrop against which the story unfolds.

Paul Butler features as Professor Sherman, another figure in the academic environment that influences Oscar.

Hope Chernov takes the role of Samantha Steadman, further building out the young adult fabric of the movie.