Trivia

Born in Harlem to Sicilian parents, the eldest of three children, he was raised in Queens . In late 1979, he had a job as an actor and director for a nonprofit theater. He took the name Denison from his friend Jan Denison, who supported him in his pursuit to act.

When Ken Wahl, the star of Wiseguy (1987), suffered an injury that incapacitated him, Denison was chosen to fill the gap by playing another agent, who appeared for the duration of the story line that the show was engaged in at the time.

Has worked in construction, as a chess tournament promoter, a backgammon tournament promoter, a life-insurance salesperson, a chauffeur and a newspaper editor.

He used the profits from his own construction company to pay for his college education.

Attended State University of New York (SUNY) in New Paltz, New York where he received a bachelor's degree.

Denison is his godmother's name.

In 1977 he was an agent for John Hancock Life Insurance in Poughkeepsie, New York. He spent his spare time in various stage plays in New Paltz, New York about 80 miles north of New York City.

Has been married twice. His first marriage was in the 1970s and ended before the decade was over.