Currently, no Dallas Cowboys player wears the #33.
I think it unlikely that any one would try to wear 33, as it belonged to Hall of Famer Tony Dorsett. While the Cowboys do not retire numbers, I don't think you will see a 12,8,33, or 74. 88 lingers on, however.
Safety Roy Williams wore No. 31 during the 2006 season.
Doug Free is number 68 on the Dallas Cowboys.
Safety George Teague wore #31 between 1998-2001. Williams came to the Cowboys in 2002.
The Cowboys tied the NY Giants 31-31.
Anthony Spencer is number 93 on the Dallas Cowboys.
B.W. Webb is number 20 on the Dallas Cowboys.
Barry Church is number 42 on the Dallas Cowboys.
Ben Bass is number 79 on the Dallas Cowboys.
Brandon Carr is number 39 on the Dallas Cowboys.
Bruce Carter is number 54 on the Dallas Cowboys.
Caesar Rayford is number 95 on the Dallas Cowboys.
Cameron Lawrence is number 53 on the Dallas Cowboys.