Gray was signed to
Celtic as a schoolboy S-former in 1989 and followed the route of many on to the groundstaff at 16 in 1990. He played youth and
reserve team football, and was released to play for Giffnock Park North AFC. He ended the
1991–92 season close to a first team call up and won a new two-year contract. The
next season marked his debut with one appearance against
Aberdeen in 1992–93 but a groin strain in October curtailed his 1992–93 season. In the
1993–94 season he asked for a
loan move south of the border. He spent some time on loan with
AFC Bournemouth in February before returning to more reserve team action. At the end of the season he went to Canada on the post-season tournament with the senior team. Out of contract at the start of the
1994–95 season, he was wanted by
Sunderland and
Blackburn Rovers and signing month-to-month deals. He eventually signed a new deal on 27 January 1995 with the stated intention of leaving if he did not get more first-team football. He had a reasonable run of games and was on the verge of the full-time first-team inclusion. In the
1995–96 season, he won starting appearances in the latter part of the season but an ankle ligament injury proved troubling and curtailed full involvement. The
1996–97 season was troubled by a knee injury, and he ended playing most of the season with the reserves. Out of contract again, his future looked uncertain. A deal to take him to
Lille fell through in the close season and he began the
1997–98 season on month-to-month deals. In October he was loaned to
Greenock Morton until January 1998, being recalled from Greenock to play against them in the
Scottish Cup tie on 24 January. He played a few more reserve games before being sold to
Tommy Burns at
Reading on 26 March 1998. Gray was loaned to
Rushden & Diamonds and joined them full-time in January 2001 and released at the end of the
2004–05 season. He joined
Oxford United making 10 appearances with them. He was thereafter associated with
non-league side
Guiseley and he coached the reserve team there, along with
Vince Brockie. ==Acting career==