Pryce previously played rugby league with Wigan and Harlequins RL.

[5] He made his début at St Helens in 2003 and was outstanding as the Bradford Senior Academy took the Championship in 2004.

Pryce was called up to the Great Britain squad in 2006 for the 2006 Tri nations although he did not feature in the competition.

Despite Castleford winning the game 22–28 Karl Pryce scored a single try.

Pryce featured in the Challenge cup 4th round tie against Barrow scoring a try.

He made 14 appearances scoring 20 tries and has played in the centres, wing and stand off.[when?]