Career
He is a Wales sevens international. A scrum half, Walker played for Newport HSOB and Newport Reconstruction Finance Corporation before joining Newport Gwent Dragons. During the 2008-2009 season he spent time on loan to London Welsh.
He was released by Newport Gwent Dragons in August 2010 and joined Eastwood Rugby Club in Sydney, Australia.
In July 2011 he joined the Scarlets. He also appeared on the Channel 4 show Location,Location,Location in 2014 and again in early 2016.
He was selected in the Wales Sevens squad for 2012-2013.
