Dale Doback is a fictional character from the comedy film "Step Brothers," portrayed by actor John C. Reilly. He is a 40-year-old man who still lives with his parents and has a childlike personality. Dale is known for his humorous antics and his close relationship with his equally immature stepbrother, Brennan Huff, played by Will Ferrell. In the film, Dale's life changes when his mother marries Brennan's father, leading to a chaotic and comedic living situation. Throughout the story, Dale struggles with adulthood and responsibilities, often engaging in silly behavior that highlights his reluctance to grow up.