Wathier was originally drafted by the Dallas Stars and played for their farm team the Texas Stars. He has had three stints with the Dallas Stars, playing in two games in October 2009, three games in February 2010, and one game in the 2011–12 season. In 2011, he was named an AHL All-Star and scored two goals for the Western Conference in an 11–8 loss to the Eastern Conference. On March 9, 2014, Wathier was traded to the Milwaukee Admirals. On October 21, 2014, Wathier was signed to a professional try-out by the Portland Pirates.