<Tr> <Th_colspan="2"> Season chronology </Th> </Tr> <Tr> <Td_colspan="2"> ← Previous Season 3 Next → Season 5 </Td> </Tr> <Tr> <Td_colspan="2"> List of Once Upon a Time episodes </Td> </Tr> <P> The fourth season of the ABC fantasy - drama Once Upon a Time was announced on May 8, 2014 . On May 13, 2014, it was revealed that the season would be split into two parts, the first half airing during autumn 2014, and the second half during spring 2015 of the 2014--15 television season . It premiered on September 28, 2014, and concluded on May 10, 2015 . </P>

Once upon a time season 4 episode 9 cast