Directed by Kevin Tancharoen   Written by Greg Berlanti   Andrew Kreisberg   Geoff Johns   Eric Wallace   Sam Chalsen   Kristen Kim   Thomas Pound   Lauren Certo   Sterling Gates   Joshua V. Gilbert   Cast Grant Gustin ... Barry Allen / Elseworlds Green Arrow Candice Patton ... Iris West-Allen Danielle Panabaker ... Caitlin Snow / Killer Frost Carlos Valdes ... Cisco Ramon / Vibe Hartley Sawyer ... Ralph Dibny / Elongated Man Tom Cavanagh ... Sherloque Wells Jesse L. Martin ... Joe West (credit only) Stephen Amell ... Oliver Queen / Elseworlds Flash David Ramsey ... John Diggle / Spartan Tyler Hoechlin ... Clark Kent / Superman Melissa Benoist ... Kara Danvers / Supergirl Jeremy Davies ... Dr. John Deegan LaMonica Garrett ... Mar Novu / The Monitor Elizabeth Tulloch ... Lois Lane Paul Lazenby ... Tech Thief #2 Angela Vanderwal ... Heckler Klarc Jerome Wilson ... Officer Jones (as Klarc Wilson) Uncredited Cast Reina Hardesty ... Weather Witch (archive footage) Chris Klein ... Cicada (archive footage) Sean Kohnke ... Bratva Leader Ruby Rose ... Batwoman John Wesley Shipp ... Henry Allen / The Flash G. John Turnbull ... Civilian Produced by Greg Berlanti   Jonathan Butler   Sam Chalsen   Dani Dornfeld   Joseph Patrick Finn   Geoff Garrett   Gabriel Alejandro Garza   Marc Guggenheim   Todd Helbing   Jennifer Lence   Judalina Neira   Carl Ogawa   Sarah Schechter   Scott Sebert   Eric Wallace   Kelly Wheeler   Original Music by Nathaniel Blume   Daniel James Chan   Sherri Chung   Blake Neely

Additional Info Premiere: December 09, 2018 DVD Release: August 27, 2019 Blu-ray Release: August 27, 2019 Country: Distributor: Warner Brother Studios Websites: Production Companies Berlanti Productions DC Entertainment Warner Bros. Television WarnerMedia Distributors The CW Network (The CW)   (2014) (United States) (TV) HBO Max   (2020) (United States) (VOD) (video) Studio Distribution Services (SDS)   (2021) (United States) (through) (season 7) (Blu-ray) Studio Distribution Services (SDS)   (2021) (United States) (through) (season 7) (DVD) Studio Distribution Services (SDS)   (2022) (United States) (through) (season 8) (Blu-ray) Studio Distribution Services (SDS)   (2022) (United States) (through) (season 8) (DVD) Warner Home Video   (2015) (United States) (seasons 1 and 2) (Blu-ray) Warner Home Video   (2015) (United States) (seasons 1 and 2) (DVD) Warner Home Video   (2016) (United States) (season 3) (Blu-ray) Warner Home Video   (2016) (United States) (season 3) (DVD) Rating Stats Overall Rating -- / 10 Our Rating -- / 10 Your Friends -- / 10 Male Users -- / 10 Female Users -- / 10 Site Ranking #513 / 21,271 Site Ranking