Corey Stoll

Self - Narrator (voice)

Bill Russell

Self

Oscar Robertson

Self - Basketball Hall of Fame

Stephen Curry

Self - 4 Time NBA Champion

Bob Ryan

Self - Sportswriter, The Boston Globe

Larry Bird

Self - Boston Celtics 1979-92

Magic Johnson

Self - Basketball Hall of Fame

Satch Sanders

Self - Boston Celtics 1960-73

William C. Rhoden

Self - Columnist, ESPN's Andscape

Isiah Thomas

Self - Basketball Hall of Fame

Aram Goudsouzian

Self - Bill Russell Biographer, 'King of the Court'

Lawrence O'Donnell

Self - Host 'The Last Word' MSNBC

Kareem Abdul-Jabbar

Self - Basketball Hall of Fame

Jeannine Russell

Self - Bill Russell's Widow

Bill McSweeny

Self - Co-Author with Bill Russell, 'Go Up for Glory'

Red Auerbach

Self - Coach, Boston Celtics 1950-66 (archive footage)

Bob Cousy

Self - Boston Celtics 1950-63

Steve Springer

Self - Sportswriter, The Los Angeles Times

Bill Walton

Self - Basketball Hall of Fame

Tom Heinsohn

Self - Boston Celtics 1956-65 (archive footage)

Bob Pettit

Self - St. Louis Hawks 1955-65 (archive footage)

Karen Russell

Self - Bill Russell's Daughter

Nelson George

Self - Author & Filmmaker

Jalen Rose

Self - NBA 1994-2007