Katy Keene is a TV series that aired on The CW from February 6, 2020 to May 14, 2020 for one season. It is based on the Archie Comics series of the same name. It is a spinoff of Riverdale.

Cast & Character Origins

Characters	From	Date	Episode
Josie McCoy	Riverdale	January 26, 2017	S01E01: “Chapter One: The River's Edge”
Katy Keene	Riverdale	February 5, 2020	S04E12: “Chapter Sixty-Nine: Men of Honor”

(Note: Katy Keene’s debut appearance in Riverdale is arguably closer to a promotional crossover rather than a traditional backdoor pilot since her show premiered the next day. I am listing her here as a Riverdale character as a technicality of which show she appeared on first.

The Ginger Lopez who appears in Katy Keene is unrelated to the Ginger Lopez who appears in Riverdale outside of being named after the same comic character.)

Guest Characters

Characters	From	Date	Episode	Crossover Type
Kevin Keller	Riverdale	April 23, 2020	S01E10: “Chapter Ten: Gloria”	A
Hiram Lodge	Riverdale	May 14, 2020	S01E13: “Chapter Thirteen: Come Together”	A

Outgoing Crossovers

Characters	Guest On	Date	Episode	Crossover Type
K.O. Kelly	Riverdale	January 20, 2021	S05E01: “Chapter Seventy-Seven: Climax”	A
Bernardo Bixby	Riverdale	March 10, 2021	S05E07: “Chapter Eighty-Three: Fire in the Sky”	A
Josie McCoy	Riverdale	September 8, 2021	S05E15: “Chapter Ninety-One: The Return of the Pussycats”	A
K.O. Kelly	Riverdale	April 17, 2022	S06E10: “Chapter One Hundred and Five: Folk Heroes”	A
Josie McCoy	Riverdale	August 2, 2023	S07E17: “Chapter One Hundred and Thirty-Four: A Different Kind of Cat”	A

(Note: I am listing Josie McCoy’s post-Katy Keene appearances as “crossovers” despite the fact that she originated from Riverdale.)