With the edge of someone from the streets of New York--he was born in Harlem--Denison has essayed tough guys, thugs and hoodlums as well as sympathetic urban characters for more than a decade on TV and in feature films. He used the profits from his own construction company to pay for his college education and after graduation moved back to NYC where he bounced around in a variety of jobs, including some on the fringes of show business. A chance encounter put him in a touring theatre group and after stage productions in New York--some of which he also produced--Denison was cast as the