From PEOPLE Magazine Click to enlarge
OCCUPATION: Actor

AGE: 26

HEIGHT 5'10"

MARITAL STATUS: Single

RESIDENCE: Studio City, Calif.

BIG BREAK: Playing presidential aide Charlie Young on NBC's The West Wing

STAYING FIT: A Broadway dancer (The Tap Dance Kid) at age 9, Hill still hoofs it up when he can. "He'll be standing in this beautiful suit on the Oval Office set and he'll start tap-dancing," says costar Elisabeth Moss.

NO SWEAT: After a performance in the 1995 musical Bring in 'Da Noise, Bring in 'Da Funk, "this girl asked if she could have my towel," recalls Hill. "I said, 'It's got my sweat on it,' and she said, 'Yeah, I know'—and ran off screaming with it!"

FAMILY NICKNAME: Professor Boulderock. "When I was younger, I had a big head," explains Hill, who grew up in Sayreville, N.J., as the younger of two sons of an investment banker and an education consultant.

STYLING SECRET: Dudley's Q+ Scalp Special. "They have it in Jersey but I couldn't find it in L.A. That's one great thing about being on this show—they ship it to me."