Danny Zuko:

The love interest of Sandy, Danny Zuko also wants to be more than his high school persona. As a greaser and member of the T-Birds, he has done little during high school other than fix cars, race and hang out with the rest of the gang. Falling in love with Sandy makes him strive to do more in order to win her over. Danny and Sandy are the most dynamic of the "Grease" characters because of their wish to expand their worlds in order to reach out to each other.
In my opinion, Danny is the ultimate cool kid of the school, everyone knows him, they all know what he's about and the girls swarm him. The other T-birds, mainly Sonny and Doody seem subserviant toward Danny.
When speaking I'm going to try and use a very strong North American/Canadian accent... I've researched some videos on youtube from the film 'Grease' and also the way he moves, moves with a bit of swagger when he walks and also in how he talks. His got a bit of high and low pitch when he's talking, high when he's singing obviously, then when he's talking it's not a low tone it's mid way.