Doug is one of the characters of the Disney Channel Original Movie, Descendants and Descendants 2. He is one of the heroes. He is the son of Dopey.
Official Disney Bio
Doug is the son of Dopey, the most playful and silly of the Seven Dwarfs. He plays several instruments and is in the marching band.
Doug is a smart, sweet, yet socially awkward young man. He enjoys chemistry, saying it's almost like magic (this could hint that he too enjoys magic, even though it is frowned upon in Auradon). Even though knowing his family's past with the Evil Queen, Doug had been enchanted by Evie (the Evil Queen's daughter) practically at first sight, and even went out of his way to help her when she was being scolded and threatened by a teacher who accused her of cheating. Doug also has a passion for music; is a member of his school's marching band, and has stating his dream is to perform trumpet for 'The Dragon Slayers'. It is also shown that Doug could be easily manipulated (he followed Chad's order to avoid Evie, even when he didn't want to).
Doug is the son of Dopey, one of the seven dwarfs from Snow White and the Seven Dwarfs. And even though he loves his family, he's been shown having trouble remembering all seven of the original dwarfs' names. He is also smitten by the daughter of The Evil Queen, Evie.
Doug, still very fond of Evie, is helping her grow her business as a thriving fashion designer. Handling accounting and dress deliveries, among other things, he shows her that she doesn’t need to rely on a prince for her fairytale ending.
Doug fell in love with Evie the moment he saw her, but Evie, however, was more into Prince Chad. When Chad stole Evie's mirror and handed it into the teacher, Doug stood up for Evie and convinced the teacher to let her take the test again. When Evie passed the test, Doug was the first person she showed it to. They sat down together and shared a moment before Mal interrupted. After the incident during Family Day, Doug tried to seat with Evie but was pressured by Chad not to. During the coronation party, ("Set It Off") they dance together.
As soon as Evie catches his eye, not only he has a huge crush on her, but Doug says, "Heigh Ho", which is a reference to his father and uncles' theme song, "Heigh Ho".
He plays several instruments and he's in the marching band.
Unlike his father, he can talk.
His worst fear is getting an A-.
His dream is to play the trumpet for The Dragon Slayers.
His favorite class is chemistry, since it's like magic.
When he first met the VKs, he had trouble remembering the seventh dwarf's name, Sneezy.
Doug might know a little Spanish since he spoke it in "Did I Mention".