who plays jj's boyfriend on criminal minds
Josh Stewart Stewart later appeared as Sean Cleary the CSI episode "Bad to the Bone", which aired on April 1, 2004. That same year, he also appeared in a commercial for Levi's 501 Original jeans.[7] Stewart currently has a recurring role in Criminal Minds as Detective William LaMontagne, Jr., SSA Jennifer "JJ" Jareau's boyfriend and later, husband.