Devin Brown ('08); Derrick Chievous ('90, '91); Luke Jackson ('05, '06); Kannard Johnson ('88); Jumaine Jones ('02. '03); Donny Marshal ('96, '97); Ben McDonald ('86); Mike Sanders ('92; '93); Paul Thompson ('84, '85); Bob Wilkerson ('82, '83); Bill Willoughby ('80).
Just looking out for you, the consumer, should Shaq not pan out and you need to pull the tape job over his name and rock the tribute for a past Cavalier to don the number. Not many good options there, but personally, I'd go with Derrick Chievous. Of course, Devin Brown might be the better option since his tenure with the team was actually during the current uniform style, but whatever, Derrick Chievous doesn't get a lot of love and he deserves it.
(thanks to Basketball-Reference.com)