appearance for the Scarlets in October 2011, against Leicester Tigers in the Anglo-Welsh Cup; after coming on for starting fly-half Aled Thomas in the 53rd minute, Williams scored a last-minute solo try, which he also converted to seal a 31–3 victory. Scarlets After being awarded with a development contract for the 2012–13 season, Williams made his first league start for the Scarlets as a full-back away to Connacht on 15 September 2012, scoring two tries and a conversion on the way to a 24–11 victory and the man of the match award. After missing the team's next game against the Ospreys, he returned to the side for a 22–20 defeat away to Benetton Treviso; Williams was at fault for Treviso's third try of the game, as his kick was charged down and run in by Robert Barbieri. That was his last appearance for the Scarlets for almost a year. Things got worse for Williams in October 2012, when he suffered a dislocated shoulder while playing for Llanelli in a 38–28 victory over Gala RFC in the British and Irish Cup, which kept him out for four months. After his recovery, he returned to the fly-half position for all eight of Llanelli's remaining Premiership games for which he was available, including the 47–15 loss to Pontypridd in the play-off final. With the departures of wingers George North and Andy Fenby from the Scarlets after the 2012–13 season, Williams found himself back in the Scarlets team for 2013–14, albeit out of position. After being named on the bench for the first game of the season against Leinster, Williams started seven of the next eight games on the left wing, followed by one on the right, scoring tries in the league against Edinburgh and in the Heineken Cup against Harlequins, sandwiching a penalty against Glasgow Warriors. As he had been included in the Wales squad for the 2013 Autumn internationals, he missed the next two games for the Scarlets, but returned to the side as a replacement for the return fixture against Leinster on 30 November, before starting both matches against Clermont in the Heineken Cup; he kicked a penalty in the away fixture, but also missed a conversion. After missing the last two matches of the year against Munster and the Ospreys, Williams was a replacement for the Scarlets' first two games of 2014 (going unused in the Heineken Cup against Racing