<Table> <Tr> <Th_colspan="2"> White Walker </Th> </Tr> <Tr> <Td_colspan="2"> A Song of Ice and Fire character </Td> </Tr> <Tr> <Td_colspan="2"> A White Walker with an ice spear, from Game of Thrones </Td> </Tr> <Tr> <Th> First appearance </Th> <Td> Novel: A Game of Thrones (1996) Television: "Winter Is Coming" (2011) </Td> </Tr> <Tr> <Th> Created by </Th> <Td> George R.R. Martin </Td> </Tr> <Tr> <Th_colspan="2"> Information </Th> </Tr> <Tr> <Th> Aliases </Th> <Td> The Others </Td> </Tr> <Tr> <Th> Type </Th> <Td> Non-human creature </Td> </Tr> </Table> <Tr> <Th_colspan="2"> White Walker </Th> </Tr>

When do the white walkers come into game of thrones
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