Parcells, Bill, 1941-, American football coach, b. Englewood, N.J., as Duane Charles Parcells, nicknamed "the Big Tuna." He played for Colgate and Wichita State before being drafted (1964) and cut by the Detroit Lions. He then coached for six college teams before becoming (1978) head coach at the U.S. Air Force Academy. Two years later, he entered the National Football League's coaching ranks as defensive coordinator for the New England Patriots, and became head coach of the faltering New York Giants in 1983. NFL Coach of the Year in 1986 and 1989, he led the Giants to Super Bowl wins in 1987 and 1991, when he left coaching to become a broadcaster. Parcells returned to football in 1993 as head coach of the struggling New England Patriots and revived the team, which made it to the Super Bowl in 1997. Parcells subsequently coached the New York Jets (1997-2000) and Dallas Cowboys (2003-7), turning lackluster teams into conference contenders. In 2007 he became head of football operations for the Miami Dolphins.

David Armin-Parcells was born on February 10, 1972 in Montreal, Quebec, Canada. His first acting job was on Degrassi, but he has not acted on any other shows.

He played Claude Tanner on Degrassi Junior High and Degrassi High but his character eventually committed suicide.

He currently resides in Detroit, Michigan with his wife. He is a DJ producing music under the alias of DJ Guy Lafleur.