The first four year walk-on in the modern era of basketball at Georgetown, Dean Berry was a consistent contributor to the Hoya teams of the late 1990's.

Berry scored a season high 11 points in his debut versus Colgate in the 1995 pre-Season NIT and finished with just seven points in his remaining 17 games off the bench. After playing sparingly as a sophomore, he saw action in 21 games in 1997-98, including three starts and a 3.7 per game average.

In his post-Georgetown years, Berry became an executive at a medical supplies company in Miami, and was cited in various articles as the man who taught Allen Iverson his signature "crossover" move. In his 2002 book, author Larry Platt explained that "Berry, with his limited skills, had spent years developing his game. A cerebral player, he started studying tapes in the seventh grade of great ball handlers. Over and over again, he'd watch Tim Hardaway's crossover dribble, commonly referred to as the "UTEP two-step." He watched Isiah Thomas's unique version of the same move. He saw John Stockton remove all the bells and whistles and confound opposing guards with it...

"The reason Iverson kept playing Berry after practice was that he couldn't stop Berry's crossover, even when he knew it was coming. He'd tell himself not to go for the fake, and he knew he was quicker his teammate, the twelfth man on the team, but then Berry would drop a cross on him and the next thing you knew, the walk-on was around him. "Man," Iverson finally said, "you gotta show me that..." From then on, Berry taught his superstar teammate his favorite move."