Danny Zuko is one of the main characters in Grease. He is also the love interest of Sandy Olson. He's the respected leader (possible founder) of the T-Birds, the Rydell High greaser gang. Danny is portrayed by John Travolta
He has black hair, and blue eyes and walks with a swagger. He is often seen with a cigarette, lit or not. He's always seen wearing black jeans, a T-shirt (usually white, black, or red), and black shoes. Danny's hair is done up in an Elephant's trunk - a popular `greaser' style of the 1950s - and he's almost always seen with his black leather jacket with the T-Birds logo on the back, the only exception being towards the end of the movie when he earns his Letterman sweater in track, and wears it, in order to impress Sandy, also shocking everyone else at Rydell.
Danny has a stereotypical macho personality. During the summer when he met Sandy she claimed him to be gentle and sweet, however, once reunited with him in school, he put on a callous, macho façade, and she cried and called him "a fake and a phony!" Throughout the film, he showed himself to be very image-conscious, only acting on his true feelings towards the end of the movie. Danny is quite show-off and seemingly perverted, claiming he and Sandy had sex during the events of Summer Nights' (which was a fabrication). This was also further proven in the scene in which Danny tried to make sexual moves on Sandy while watching a Drive-In movie.
Despite all of his shortcomings and volatile temper - Warning Artie when the he flipped a basketball too fast to Danny, and when Danny ended up sucker-punching large wrestling student Andy when the other had him pinned during a wrestling try-out - he was shown to be a very loyal friend (especially towards Kenickie) and of good nature, as he tried to act on his feelings during the end of the movie instead of playing the macho like he previously did.
- He is the leader of the T-Birds.
- He had an on again / off-again girlfriend named Sandy Olsen that he claimed he saved from drowning over the summer - which was a tall tale.
- Before dating Sandy, he was a bit of a teenage lothario, dating several girls, such as Betty Rizzo, Possibly Patty Simcox (assumed), and Cha-Cha.