<Tr> <Th> Last appearance </Th> <Td> `` A Beautiful Disaster '' March 23 , 2016 ( as Main Cast ) `` Red Light '' 12x22 May 10 , 2017 ( as Special Guest ) </Td> </Tr>
<Tr> <Th> Last appearance </Th> <Td> `` A Beautiful Disaster '' March 23 , 2016 ( as Main Cast ) `` Red Light '' 12x22 May 10 , 2017 ( as Special Guest ) </Td> </Tr>
what episode does derek morgan leave the bau
what episode does derek morgan leave the bau
A Beautiful Disaster
A Beautiful Disaster