DANNY ZUKO: Male, High School Teen(Range: tenor, D4–B5)
The leader of the Burger Palace Boys; good-looking, strong and confident, with an air of easy-going charm
SANDY DUMBROWSKI: Female, High School Teen (Range: Soprano, A3–F#5)
New girl in town; sweet, wholesome, naive, cute, and innocent
BETTY RIZZO: Female, High School Teen (Range:Alto A3–C5)
Leader of the Pink Ladies; tough, sarcastic and outspoken but vulnerable
FRENCHY: Female, High School Teen (Range: Alto, A3–D5)
A dreamer; good-natured but not too smart, she is heavily made up, fussy about her appearance, particularly her hair. She can't wait to finish high school so she can be a beautician
MARTY: Female, High School Teen (Range Alto, C4–C5)
The 'beauty' of the Pink Ladies; pretty and looks older than the other girls, but betrays her real age when she opens her mouth. She tries to act sophisticated.
JAN: Female, High School Teen(Range: Alto, A3-C5)
Funny, loud, compulsive eater and awkward member of the Pink Ladies. Loud and pushy with the girls, but shy with boys
DOODY: Male, High School Teen (Range: Tenor, D4-A5)
The youngest of the guys; small, boyish and open, with a disarming smile and a hero-worshipping attitude towards the other guys. He also plays the guitar.
KENICKIE: Male, High School Teen(Range: Tenor, C4–F5)
The second in command of the Burger Palace Boys; tough-looking, tattooed, surly and avoids any show of softness. He has an offbeat sense of humor.
SONNY LATIERRI: Male, High School Teen(Range: baritone, G3–A5)
A member of the Burger Palace Boys; funny Italian-American, he is a braggart and wheeler-dealer who thinks he's a real lady-killer
ROGER:Male, High School Teen (Range: Tenor, D4-A5)
The anything-for-a-laugh stocky type of boy; a clown who enjoys winding people up, he is full of mischief and is always dreaming up half-baked schemes and ideas
VINCE FONTAINE: Male, High School Teen (Range: Ensemble/Part Flexible)
A typical 'teen audience' disc jockey; slick, egotistical and fast-talking. He is also a veteran 'Greaser.'
CHA-CHA, aka CHARLENE DIGREGORIO: Female, High School Teen (Range: Alto, C4–C5)
The best dancer at St. Bernadette's; a loud mouth, she wins the dancing competition with Danny.
EUGENE FLORCZYK: Male, High School Teen(Range: Tenor, A3–E5)
The class valedictorian; physically awkward, with weak eyes and a high-pitched voice. He's a typical 'apple-polisher' - both smug and pompous, but gullible.
JOHNNY CASINO: Male, High School Teen (Range:Tenor, G4-E5)
All-American, rock-star “greaser” student at Rydell High, whose real name is Clarence
MISS LYNCH: Female, Age Flexible(Range: Ensemble/Part Flexible)
A no-nonsense, serious, loud, English teacher
PATTY SIMCOX: Female, High School Teen(Range: Alto, D4-A4)
A typical cheerleader; attractive, athletic, sure-of-herself, but can be given to bursts of disconcerting enthusiasm. She's a bit of a pain and unpopular with the Pink Ladies, and can twirl a baton.
TEEN ANGEL: Male, Age Flexible(Range: Tenor, E4–F5)
Frenchy's suave and slick guardian angel, who encourages her to stay in school.
THE PINK LADIES: Ensemble(SATB)
The club-jacketed, gum-chewing, hip-swinging girls' gang who hang around with the Burger Palace Boys.
THE BURGER PALACE BOYS: Ensemble(SATB)
A super-cool, DA-haired, hard-looking group of high school wheeler-dealers... or so they think.
Radio Voice: Male, Age Flexible (Rage: Tenor, A3–C5)
A Radio Voice