<Tr> <Td_colspan="2"> Criminal Minds character </Td> </Tr> <Tr> <Th> First appearance </Th> <Td> "The Last Word" 2x09, November 15, 2006 </Td> </Tr> <Tr> <Th> Created by </Th> <Td> Edward Allen Bernero </Td> </Tr> <Tr> <Th> Portrayed by </Th> <Td> Paget Brewster </Td> </Tr>

When did prentiss come back to criminal minds