Title: List of Bates Motel characters
Content:  Dylan Massett (portrayed by Max Thieriot) is Norma's estranged son and Norman's half-brother. Having grown up largely on his own, he is resourceful, strong-willed and independent. He genuinely cares about Norman, but has a difficult relationship with Norma. He believes that Norma seeks out conflict and drama, and that her treatment of Norman will damage him. When he arrives to White Pine Bay, after recently being laid off, Dylan bonds with Norman and encourages him to have a life outside of Norma. He gets involved in the town's illicit marijuana business, and quickly rises up the ranks as he wins favor with his superiors. His world comes crashing down, however, when he learns from Norma that he is the product of 
Title: List of Bates Motel characters
Content:  subsequently form a romantic attachment. Dylan leaves for Seattle with Emma and the two subsequently get married and have a daughter. He finds out online that his mother committed suicide and is furious that Norman did not tell him. He returns to White Pine Bay after fearing for Norman's mental health. Norman later confesses to murder; Dylan visits Norman's hearing but is unable to listen to the charges against his brother. After Norman is freed, he goes to the motel and finds Norman in the kitchen with Norma's corpse. Norman attempts to stab Dylan but is fatally shot by his brother, whom he thanks as he passes away. Dylan then returns to Seattle to be with Emma and their daughter.
Title: List of Bates Motel characters
Content:  Caleb Calhoun (portrayed by Kenny Johnson) is Norma's estranged older brother, Norman's uncle and Dylan's biological father. In season two, Caleb arrives at the Bates Motel but Norma immediately throws him out. However, Caleb bonds with Dylan, saying he helped protect Norma from their abusive father when they were children. Dylan defends Caleb to Norma, but he also repeatedly raped her for years during their childhood. This then escalates into a fight between Norman and Dylan until Norma intervenes by revealing that Caleb is Dylan's father. After Norman (in Norma's persona) attacks him for the rape, Caleb leaves town. He returns to help Dylan with a "pot farm" by building a barn. Dylan grows closer to Caleb and ponders telling 
Title: Bates Motel (TV series)
Content:  The second season follows the aftermath of Norman's teacher's murder, as her mysterious past comes to light. Meanwhile, Norma finds herself making dangerous decisions in order to keep the motel running and preventing the impending bypass. Bradley's search for her father's killer leads to the extremes, and Dylan learns the disturbing truth about his parentage.
Title: List of Bates Motel episodes
Content:  Bates Motel is an American psychological horror drama television series developed by Carlton Cuse, Kerry Ehrin, and Anthony Cipriano for A&E. Using characters and elements from the novel Psycho by Robert Bloch, the series serves as a prequel to the 1960 film of the same name directed by Alfred Hitchcock, albeit within a contemporary setting. Following the death of her abusive husband, Norma Louise Bates (Vera Farmiga) relocates to the fictional town of White Pine Bay, Oregon with her son Norman (Freddie Highmore). There, she purchases a small motel and attempts to start a new life with her son. They are soon intercepted by Norma's estranged son, Dylan Massett (Max Thieriot), who carries his own secrets. The three are quick to discover that the idyllic town is not at all what it seems and that dangerous secrets lurk around every corner. The series premiered on March 18, 2013, and received generally positive reviews.
Title: Bates Motel (season 3)
Content: Wilson Bethel as Taylor ; Emiliano Díez as Alex's Dad ; Tom McBeath as Stanley ; Keegan Connor Tracy as Miss Blair Watson 
Title: Dylan McAvoy
Content:  (Melissa Claire Egan); their short-lived romance and marriage received negative reviews from viewers and critics alike. In October 2013, it was revealed that Dylan is in fact the long-lost son of Nikki Newman (Melody Thomas Scott), Nicholas' mother, making them half-brothers. In June 2014, it was revealed that Dylan's biological father is Nikki's childhood friend, and chief of police, Paul Williams (Doug Davidson). Later, Dylan establishes a relationship with Nicholas' former wife, Sharon Newman (Sharon Case), whom he eventually marries. Burton's performance earned him a Daytime Emmy Award nomination for Outstanding Supporting Actor in a Drama Series in 2014 and 2016, winning the award in 2017. In October 2016, Burton announced his decision to not renew his deal with The Young and the Restless. He made his final appearance on January 27, 2017.
Title: Bates Motel (TV series)
Content:  The fifth season begins two years after the death of Norma. Publicly happy and well-adjusted, Norman struggles at home, where his blackouts are increasing and "Mother" threatens to take him over completely. Meanwhile, Dylan and Emma find themselves drawn back into Norman's world, and Romero hungers for revenge against his stepson.
Title: Bates Motel (season 1)
Content: W. Earl Brown as Keith Summers ; Lara Gilchrist as Rebecca Craig ; Ben Cotton as Danny 
Title: Dylan McKay
Content:  because she can't choose, but because it would destroy their friendship in the same way that interest in Dylan damaged her friendship with Brenda. During the show's sixth season, Dylan finds out that the FBI believes a mobster named Anthony Marchette killed his father and decides to seek revenge. He uses the mobster's daughter, Toni Marchette to get close to him, but soon finds himself falling in love with her. Despite Dylan's feud with the mobster (with whom Toni is very close), the two eventually decide to get married and relocate to Hawaii, which results in Toni's father ordering a hit on Dylan. The hitman ends up accidentally 

Question: who is dylan's father in bates motel?
Answer: Norma's brother, Caleb.