Darnell Coles was a professional baseball player who played for several teams during his career. He was born on June 2, 1962, in San Bernardino, California. Coles was a standout athlete in high school and was drafted by the Seattle Mariners in the first round of the 1980 Major League Baseball draft.

Coles made his Major League debut with the Mariners in 1983 and played for them until 1986. He then played for the Detroit Tigers from 1987 to 1989, the Pittsburgh Pirates in 1990, the Toronto Blue Jays in 1991, the Milwaukee Brewers from 1992 to 1995, and the Cincinnati Reds in 1996 and 1997.

Coles was primarily a third baseman but also played first base and outfield during his career. He was known for his power hitting and was a reliable fielder. Coles had a career batting average of .245 with 75 home runs and 368 RBIs.

One of Coles' most memorable moments came in 1986 when he hit a game-winning home run in the 14th inning of a game against the Boston Red Sox. The home run helped the Mariners avoid a sweep and gave them their first win of the season.

After retiring from baseball, Coles became a coach and manager. He served as a hitting coach for the Detroit Tigers from 2003 to 2005 and the Milwaukee Brewers from 2006 to 2010. Coles also managed in the minor leagues for several years, including stints with the Single-A West Michigan Whitecaps and the Double-A Erie SeaWolves.

In 2011, Coles was hired as the hitting coach for the Seattle Mariners, the team that drafted him in 1980. He served in that role for two seasons before being let go in 2013.

Coles' baseball career spanned over a decade and he played for several teams during that time. He was known for his power hitting and was a reliable fielder. After retiring from baseball, Coles became a coach and manager and has continued to work in baseball in various roles.