<Tr> <Th> First appearance </Th> <Td> "A Hard Day's Night" (1.01) March 27, 2005 </Td> </Tr> <Tr> <Th> Last appearance </Th> <Td> "Now or Never" (5.24) May 14, 2009 (as a series regular) "Good Mourning" (6.01) September 24, 2009 (stand - in) </Td> </Tr> <Tr> <Th> Created by </Th> <Td> Shonda Rhimes </Td> </Tr> <Tr> <Th> Portrayed by </Th> <Td> T.R. Knight </Td> </Tr>

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