<P> Riverdale is an American teen drama television series based on the characters of Archie Comics . The series was adapted for The CW by Archie Comics' chief creative officer Roberto Aguirre - Sacasa, and is produced by Warner Bros. Television and CBS Television Studios, in association with Berlanti Productions and Archie Comics . Originally conceived as a feature film adaptation for Warner Bros. Pictures, the idea was re-imagined as a television series for Fox . In 2015, development on the project moved to The CW, where the series was ordered for a pilot . Filming takes place in Vancouver, British Columbia . </P> <P> The series features an ensemble cast based on the characters of Archie Comics, with KJ Apa in the role of Archie Andrews; Lili Reinhart as Betty Cooper, Camila Mendes as Veronica Lodge, and Cole Sprouse as Jughead Jones, the series' narrator . The cast also features Madelaine Petsch as Cheryl Blossom, Ashleigh Murray as Josie McCoy and Casey Cott as Kevin Keller . Other characters in the series include the parents of the main characters: Luke Perry as Fred Andrews, Mädchen Amick as Alice Cooper, Marisol Nichols and Mark Consuelos as Hermione and Hiram Lodge, and Skeet Ulrich as F.P. Jones . </P> <P> The series debuted on January 26, 2017 to positive reviews . A 22 - episode second season premiered on October 11, 2017, and concluded on May 16, 2018 . On April 2, 2018, The CW renewed the series for a third season, which is set to premiere October 10, 2018 . As of May 11, 2018, 35 episodes of Riverdale have aired, concluding the second season . </P> <Table> <Tr> <Th_colspan="2"> Season </Th> <Th_colspan="2"> Episodes </Th> <Th_colspan="2"> Originally aired </Th> <Th_colspan="2"> Nielsen ratings </Th> </Tr> <Tr> <Th> First aired </Th> <Th> Last aired </Th> <Th> Rank </Th> <Th> Average viewers (in millions inc . DVR) </Th> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td_colspan="2"> 13 </Td> <Td_colspan="1"> January 26, 2017 (2017 - 01 - 26) </Td> <Td> May 11, 2017 (2017 - 05 - 11) </Td> <Td> 154 </Td> <Td> 1.69 </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td_colspan="2"> 22 </Td> <Td_colspan="1"> October 11, 2017 (2017 - 10 - 11) </Td> <Td> May 16, 2018 (2018 - 05 - 16) </Td> <Td> 173 </Td> <Td> 2.11 </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td_colspan="2"> TBA </Td> <Td_colspan="1"> October 10, 2018 (2018 - 10 - 10) </Td> <Td> TBA </Td> <Td> TBA </Td> <Td> TBA </Td> </Tr> </Table>

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