From being considered something of a fringe player during the Dragons first two seasons in the Super League, Casty matured and became an integral part of the French team, and regularly seen making hard yards from the interchange bench.

[citation needed] Casty enjoyed an excellent season in 2012 which culminated in him being named in the Super League Dream Team.

[6] He played in the 2018 Challenge Cup Final victory over the Warrington Wolves at Wembley Stadium.

[10][11] On 3 November 2011, the annual RLIF Awards dinner was held at the Tower of London where Casty was named the French player of the year.

[12] In October 2016, Casty captained France in their end of year test match against England in Avignon.