<Tr> <Th> Spouse (s) </Th> <Td> Will LaMontagne Jr . </Td> </Tr> <Tr> <Th> Children </Th> <Td> Henry LaMontagne Michael LaMontagne </Td> </Tr> <Tr> <Th> Seasons </Th> <Td> 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 </Td> </Tr> <P> Jennifer "JJ" Jareau is a fictional character from the CBS crime drama Criminal Minds, portrayed by A.J. Cook . </P>

When does aj come back to criminal minds