Krypton is an American television series developed by David S. Goyer for Syfy. The series takes place on the eponymous planet, approximately 200 years before the birth of Kal-El / Superman and eventual destruction of the planet, focusing on his grandfather, Seg-El (Cameron Cuffe). Krypton premiered on March 21, 2018. Its first season consisted of ten episodes. The series was renewed for a second season which premiered on June 12, 2019.[2]

After being the highest-rated Syfy TV series in 2018, Krypton was canceled due to poor ratings in 2019. The final episode aired on August 14, 2019.


Set two generations before the destruction of Superman’s home planet, KRYPTON follows Seg-El, the legendary Man of Steel’s grandfather — whose House of El was ostracized and shamed. With Krypton’s leadership in disarray, Seg-El encounters Earthly time-traveler Adam Strange who warns he’s under the clock to save his beloved world from chaos. Fighting to redeem his family’s honor and protect the ones he loves, Seg is also faced with a life and death conflict – save his home planet or let it be destroyed in order to restore the fate of his future grandson.[1]

Cast and characters


  • Cameron Cuffe as Seg-El[3]: Superman's grandfather and Jor-El's father; athletic, quietly confident, and in his 20s. A younger version of the "grumpier" character from the comics.
  • Shaun Sipos as Adam Strange[4]: A human from the future who forewarns Seg-El of Brainiac, and tells him of his grandson Kal-El, better known as Superman.
  • Ann Ogbomo as Jayna-Zod[5]: The Primus of the Kryptonian military guild and mother of Lyta.
  • Aaron Pierre as Dev-Em[6]: A commander in the kryptonian army. He is engaged to marry Lyta-Zod.
  • Georgina Campbell as Lyta-Zod[7][8]: A reluctant cadet and warrior in the Kryptonian military, who is in a clandestine relationship with Seg-El.
  • Wallis Day as Nyssa-Vex[6][9]: A junior magistrate and the daughter of Daron-Vex.
  • Ian McElhinney as Val-El[6]: Seg's grandfather, who defied death by going to the Phantom Zone and is a staunch believer in space exploration.
  • Elliot Cowan as Daron-Vex[6]: The chief magistrate of Kandor, charged with defending Krypton's oligarchy.
  • Rasmus Hardiker as Kem[6]: An engineer and Seg's best friend.
  • Blake Ritson as Brainiac[10]: An alien being known as "The World Collector" seeking to destroy Krypton, years before the birth of Kal-El / Clark Kent / Superman.


  • Alexis Raben as Rhom: A rankless Kryptonian, and a friend of the House of El. She is the mother of Ona.
  • Tipper Seifert-Cleveland as Ona: A initially rankless Kryptonian, and a friend of the House of El. She is the daughter of Rhom. She’s made a disciple of Rao upon being orphaned.
  • Hannah Waddingham as Jax-Ur: The leader of Black Zero.


Additionally, Superman, Doomsday, Hawkgirl, the Green Lantern Corps and Darkseid will also appear in the television series.


Season One Season Two




  1. 1.0 1.1 Krypton (@KryptonSYFY) - Twitter
  2. ‘Krypton’ Renewed For Season 2 By Syfy Premiere Date + Trailer
  3. "Krypton: Cameron Cuffe to Star as Superman's Gramps in Syfy Prequel" - TVLine
  4. "‘Krypton’: Shaun Sipos To Play Adam Strange In Syfy Superman Prequel Series" - Deadline
  5. "Ann Ogbomo (Jayna - Zod) – Cast" - Syfy
  6. 6.0 6.1 6.2 6.3 6.4 "‘Krypton’: Ian McElhinney & Elliot Cowan Among Six Cast In Syfy Pilot" - Deadline
  7. "‘Krypton’: Georgina Campbell Cast As Female Lead In Syfy Superman Prequel" - Deadline
  8. "Georgina Campbell (Lyta - Zod) – Cast" - Syfy
  9. "Wallis Day (Nyssa - Vex) – Cast" - Syfy
  10. "‘Krypton’: Paula Malcomson & Blake Ritson Join Syfy Superman Prequel Series" - Deadline
Community content is available under CC-BY-SA unless otherwise noted.