Gary Alan Sinise ( /səˈniːs/; born March 17, 1955) is an American actor, film director and musician. During his career, Sinise has won various awards including an Emmy and a Golden Globe Award and was nominated for an Academy Award. In 1992, Sinise directed, and played the role of George Milton in the successful film adaptation of Of Mice and Men. Sinise was nominated for the Academy Award for Best Supporting Actor in 1994 for his role as Lt. Dan Taylor in Forrest Gump. He won a Golden Globe Award for his role in Truman, as Harry S. Truman. In 1996, he played a corrupt police officer in the dramatic hit Ransom, Detective Jimmy Shaker. In 1998, Sinise was awarded an Emmy Award for the television film George Wallace, a portrayal of the late George C. Wallace. Since 2004, Sinise has starred in CBS's CSI: NY as Detective Mac Taylor.

Sinise was born in Blue Island, Illinois, the son of Mylles S. (née Alsip; b. 1932) and Robert L. Sinise (b. 1931), the latter of whom was a film editor. He is of part Italian ancestry (from his paternal grandfather). He attended Highland Park High School in Highland Park, Illinois. In 1974, Sinise and two friends, Terry Kinney and Jeff Perry, founded the Steppenwolf Theatre Company. Since its founding, Steppenwolf has showcased the talents of such notable actors as Joan Allen, Kevin Anderson, Gary Cole, Ethan Hawke, Glenne Headly, John Mahoney, John Malkovich, Laurie Metcalf, Martha Plimpton, Jim True-Frost and most recently William Petersen. At Steppenwolf, Sinise honed his acting and directing skills, received a Joseph Jefferson Award for his direction of Lyle Kessler's play Orphans, that took him from Chicago, to New York City to London's West End, and worked on more than thirty of the company's productions.

Melina Eleni Kanakaredes Constantinides (Greek: Μελίνα Ελένη Κανακαρίδου Κωνσταντινiδου; born April 23, 1967) is an American actress. She is widely known for two starring roles on U.S. prime-time television drama series; playing Detective Stella Bonasera in CSI: NY and portraying Dr. Sydney Hansen in Providence.

CBS confirmed in July 2010 that Kanakaredes would not be returning for the seventh season of CSI: NY.

Kanakaredes was born in Akron, Ohio, the daughter of Connie (née Temo; b. 1936), a candy company owner, and Harry Kanakaredes (b. 1928), an insurance salesman. She is a second-generation Greek-American and speaks Greek. Her two maternal uncles own and run a candy store in Akron called "Temo's Candy Company," a chocolate store established in its current location by Kanakaredes' grandfather, Christ Temo. She has two sisters: Cornelia "Lia" (b. 1961) and Aretta Kanakaredes (b. 1962).

At age 8, Kanakaredes made her stage debut in a production of "Tom Sawyer" at Weathervane Playhouse in Akron, Ohio. She graduated from the Firestone High School in Akron. She attended Ohio State University for a short time, and then transferred to Point Park College in Pittsburgh, Pennsylvania, where she performed roles in the professional theatre scene there, including the role of Mary Magdalene in Jesus Christ Superstar at Pittsburgh Musical Theater. She graduated from Point Park in 1989 with a Bachelor of Arts degree in theater arts.

Carmine Dominick Giovinazzo (Italian pronunciation: [ˈkarmine dʒoviˈnattso]; American English pronunciation: ʤɪ-oʊ-vɪ-ˈnɑ-zoʊ or jee-oh-vi-'nah-zoh; born August 24, 1973) is an American actor and singer, best known for his role as Detective Danny Messer in CSI: NY.

Giovinazzo was born and raised on Staten Island, the son of Nancy and Dominick, who was a police officer. He comes from a family of policemen and has Italian, English, Native American, and Norwegian ancestry. Growing up on the streets of Staten Island, Giovinazzo was an avid athlete; though he played many different sports, baseball and roller hockey were his preferences. He graduated from Port Richmond High School in 1991 and attended Wagner College. He had hoped to become a professional baseball player, but a serious back injury dashed his career plans, so, with the support of his family, he turned to acting. As a child, Giovinazzo participated in making short films, but remembers no particular time when he had the idea to start acting.