[5][6] Clark started his professional career with hometown club Castleford, making his début in February 2011.

[7] Clark played in the 2014 Challenge Cup Final defeat by the Leeds Rhinos at Wembley Stadium.

[12] Clark played in the 2018 Challenge Cup Final defeat against the Catalans Dragons at Wembley Stadium.

[17] In round 1 of the 2024 Super League season, Clark made his club debut for St Helens and scored a try as they defeated the newly promoted London Broncos 40-4.

[19] Clark played 22 matches for St Helens in the 2024 Super League season which saw the club finish sixth on the table.

Clark played in St Helens golden point extra-time playoff loss against Warrington.