As a first-grade player for the Canberra Raiders and the Brisbane Broncos clubs, Walters was positioned at five-eighth or halfback in squads that cumulatively won six premiership titles.
[13] From 1983 to 1984, Walters and three of his brothers (Brett, Steve and Kerrod) played for the Booval Swifts club before joining the Ipswich Jets in the Brisbane Rugby League Premiership competition in 1986.
The next year, Walters followed Steve to the Canberra Raiders and the New South Wales Rugby League Premiership competition and remained until transferring to the Brisbane Broncos in 1990.
[6] In the 1987 NSWRL season, Walters was a reserve[citation needed] in the Canberra Raiders' first grand final, which they lost 8–18 to the Manly-Warringah Sea Eagles at the Sydney Cricket Ground.
[citation needed] In 1989, Walters played from the bench for Canberra in their 19–14 NSWRL Grand Final win against the Balmain Tigers at the Sydney Football Stadium.
[citation needed] Separately, Walters made his debut for the Queensland Maroons in the 1989 State of Origin series as a reserve in game 3 at Lang Park in Brisbane.
[citation needed] At representative level, Walters played from the reserve bench for Queensland in all six games of the 1990 and the 1991 State of Origin series.
On the 1991 Kangaroo tour of Papua New Guinea, Walters made his test match debut; he and Kerrod became the first twin brothers to play rugby league for Australia.
Later that year, he was part of the Brisbane roster that won the 1992 Grand Final 28–8 against the St George Dragons at Sydney Football Stadium.
Steve, Kevin and Kerrod Walters had already become the first trio of brothers to play for Queensland and Australia in 1992,[15] and another milestone was achieved when all three were selected to tour in England with the Australian Rugby League World Cup squad.
Furthermore, Walters played in Brisbane's 1992 World Club Challenge win over the Wigan Warriors at Central Park in England.
During the 1994 NSWRL season, Walters played at five-eighth for defending premiers Brisbane when they hosted and lost the 1994 World Club Challenge 14–20 to British champions Wigan Warriors at ANZ Stadium.
In the Broncos' 2000 NRL grand final 14–6 win against the Sydney Roosters at Stadium Australia, Walters captained at halfback, claiming one more premiership ring with the club before moving to England at the request of Allan Langer.
At the end of the 2005 season, after five successive years without a grand final appearance, Bennett decided to clean-out the coaching staff and removed long-time allies such as Walters, Gary Belcher and Glenn Lazarus.
By round 25, Brisbane was back in first position and needed to defeat the Melbourne Storm to secure the minor premiership, but a decision to rest eleven of thirteen regular players that match contributed significantly to Brisbane finishing second (two weeks later) on the 2023 ladder after the Penrith Panthers, the minor and major premiers from 2022.
[40] In 2017, the program's name changed to The Wesley Hospital Choices Cancer Support Centre with Walters continuing as Patron.