<Table> <Tr> <Th_colspan="2"> Once Upon a Time </Th> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Th> Genre </Th> <Td> <Ul> <Li> Drama </Li> <Li> Fantasy </Li> <Li> Mystery </Li> <Li> Adventure </Li> </Ul> </Td> </Tr> <Tr> <Th> Created by </Th> <Td> <Ul> <Li> Edward Kitsis </Li> <Li> Adam Horowitz </Li> </Ul> </Td> </Tr> <Tr> <Th> Starring </Th> <Td> <Ul> <Li> Ginnifer Goodwin </Li> <Li> Jennifer Morrison </Li> <Li> Lana Parrilla </Li> <Li> Josh Dallas </Li> <Li> Jared S. Gilmore </Li> <Li> Raphael Sbarge </Li> <Li> Jamie Dornan </Li> <Li> Robert Carlyle </Li> <Li> Eion Bailey </Li> <Li> Emilie de Ravin </Li> <Li> Meghan Ory </Li> <Li> Colin O'Donoghue </Li> <Li> Michael Raymond - James </Li> <Li> Michael Socha </Li> <Li> Rebecca Mader </Li> <Li> Sean Maguire </Li> <Li> Andrew J. West </Li> <Li> Dania Ramirez </Li> <Li> Gabrielle Anwar </Li> <Li> Alison Fernandez </Li> <Li> Mekia Cox </Li> </Ul> </Td> </Tr> <Tr> <Th> Composer (s) </Th> <Td> Mark Isham </Td> </Tr> <Tr> <Th> Country of origin </Th> <Td> United States </Td> </Tr> <Tr> <Th> Original language (s) </Th> <Td> English </Td> </Tr> <Tr> <Th> No. of seasons </Th> <Td> 7 </Td> </Tr> <Tr> <Th> No. of episodes </Th> <Td> 155 (list of episodes) </Td> </Tr> <Tr> <Th_colspan="2"> Production </Th> </Tr> <Tr> <Th> Executive producer (s) </Th> <Td> <Ul> <Li> Edward Kitsis </Li> <Li> Adam Horowitz </Li> <Li> Steve Pearlman </Li> <Li> David H. Goodman </Li> <Li> Andrew Chambliss </Li> </Ul> </Td> </Tr> <Tr> <Th> Producer (s) </Th> <Td> <Ul> <Li> Damon Lindelof </Li> <Li> Christine Boylan </Li> <Li> Robert Hull </Li> <Li> Kalinda Vazquez </Li> <Li> Jane Espenson </Li> <Li> Daniel T. Thomsen </Li> <Li> Brian Wankum </Li> <Li> Kathy Gilroy </Li> <Li> Ian Goldberg </Li> <Li> Liz Tigelaar </Li> <Li> Samantha Thomas </Li> <Li> Jerome Schwartz </Li> <Li> Helga Ungurait </Li> </Ul> </Td> </Tr> <Tr> <Th> Production location (s) </Th> <Td> <Ul> <Li> Steveston, British Columbia </Li> <Li> Vancouver, British Columbia </Li> </Ul> </Td> </Tr> <Tr> <Th> Cinematography </Th> <Td> <Ul> <Li> Steven Fierberg </Li> <Li> Stephen Jackson </Li> <Li> Tony Mirza </Li> </Ul> </Td> </Tr> <Tr> <Th> Editor (s) </Th> <Td> <Ul> <Li> Geofrey Hildrew </Li> <Li> Mark Goldman </Li> <Li> Scot J. Kelly </Li> <Li> Joe Talbot Hall </Li> </Ul> </Td> </Tr> <Tr> <Th> Running time </Th> <Td> 43 minutes </Td> </Tr> <Tr> <Th> Production company (s) </Th> <Td> <Ul> <Li> ABC Studios </Li> <Li> Kitsis / Horowitz </Li> </Ul> </Td> </Tr> <Tr> <Th> Distributor </Th> <Td> Disney--ABC Domestic Television </Td> </Tr> <Tr> <Th_colspan="2"> Release </Th> </Tr> <Tr> <Th> Original network </Th> <Td> ABC </Td> </Tr> <Tr> <Th> Picture format </Th> <Td> 720p (16: 9 HDTV) </Td> </Tr> <Tr> <Th> Audio format </Th> <Td> Dolby Digital 5.1 </Td> </Tr> <Tr> <Th> Original release </Th> <Td> October 23, 2011 (2011 - 10 - 23)--May 18, 2018 (2018 - 05 - 18) </Td> </Tr> <Tr> <Th_colspan="2"> Chronology </Th> </Tr> <Tr> <Th> Related shows </Th> <Td> Once Upon a Time in Wonderland </Td> </Tr> <Tr> <Th_colspan="2"> External links </Th> </Tr> <Tr> <Td_colspan="2"> Website </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Once Upon a Time </Th> </Tr>

How many seasons are there on once upon a time