Ok here is what I found through various internet searches. Some guys actually did play basketball with varying degrees of success:
Kevin Nash – of the guys I researched he seems like the best player. Played for Tennessee in 79 and 80 going to the Sweet Sixteen. Tried to transfer to Bowling Green, but ended up playing for various teams in Europe until he tore is ACL. I couldn’t find any stats (if anyone knows a good place to look up old college stats let me know) but I did find a pic (although not the greatest)

The Big Show (Paul Wight) – In High School during his junior and senior years, Wight averaged 30 points, 20 rebounds, and 11 blocks a game. He scored 50 points or more in seven games during his senior year was a two-time all conference player. Despite being heavily recruited by the University of South Carolina, he headed to Northern Oklahoma Junior College to mature, get his grades in order, and play against some stronger competition. That season, Wight averaged 14 points and 6.5 rebounds a game and earned an all-conference selection. He played there for one year before transferring to Wichita State University (1991), where according to then-coach Mike Cohen, "Paul displayed good hands, good passing ability and a nice shooting touch." Wight averaged 2.0 points and 2.3 rebounds per game for the Shockers. Transferred due to a coaching change to Southern Illinois University at Edwardsville (Division III) but before he played he sustained what was thought to be an injury to his left knee during a pickup basketball game. Instead, he had a condition called sciatica, which are irritations to large nerves that start at the lower spine and travel through the legs. That prevented him from playing basketball, and the school informed him that it would cancel his scholarship if he could no longer play. His dreams of NBA stardom were over, and so was his chance at an education.
The Undertaker (Mark Calaway), really 6’8” played JUCO ball at Angelina College (Texas) and was planning on playing professionally in Europe but suffered a career ending knee injury.
Kane (Glen Jacobs), played basketball at Quincy University (Illinois, Division II), before joining Northeast Missouri State University (now Truman State, also Division II). In the 1988–1989 season, he was an NCAA all-star; he is still listed in the Truman State University media guide as holding the record for highest field goal percentage for a single season (.621 in both the 1987–88 and 1988–89 seasons) and is the career leader in field goal percentage (.567). Jacobs also led the 1988–89 team in several categories, including blocked shots (1.0 per game) and rebounds per game (6.9 per game). Despite his success, Jacobs opted to switch to playing on the college football team, where he earned all-conference honors as an offensive lineman.
The Coach Jonathon Coachman, only 6’3” (at least that’s what he’s billed at), but played at McPherson College (Kansas, NAIA).