Krypton

Krypton is an American television series developed by David S. Goyer for Syfy. Focusing on Seg-El (Cameron Cuffe), the grandfather of DC Comics superhero Kal-El/Superman, the series is set approximately 200 years before the birth of Superman and takes place on the eponymous fictional planet.

Plot
The untold story of Superman's grandfather as he fights for justice on his home planet.

Main

 * Cameron Cuffe as Seg-El: Scion of the House of El, father of Jor-El and the future grandfather of Kal-El, who will become the iconic superhero Superman[2]
 * Nicholas Witham-Mueller as Young Seg-El.
 * Georgina Campbell as Lyta-Zod: The Primus in the Kryptonian military guild who was previously in a clandestine relationship with Seg-El[3]
 * Shaun Sipos as Adam Strange: A human from the future who forewarns Seg-El of Brainiac, and tells him of his yet-to-be born grandson Kal-El/Clark Kent[4]
 * Elliot Cowan as Daron-Vex: The former chief magistrate of Kandor, charged with defending Krypton's oligarchy[2]
 * Ann Ogbomo as Jayna-Zod: The former Primus of the Kryptonian military guild, and mother of Lyta[2] Asiatu Koroma portrays young Jayna.
 * Aaron Pierre as Dev-Em: A former commander in the Kryptonian army, and Lyta's ex-betrothed[2]
 * Rasmus Hardiker as Kem: A former bar owner and Seg's best friend[2]
 * Wallis Day as Nyssa-Vex: The former junior magistrate and the daughter of Daron-Vex[2] She and Seg have a son, Cor-Vex, whom they rename Jor-El.
 * Blake Ritson as Brainiac: An alien android being from the planet Colu who collects cities from planets. Brainiac takes over the mind of Krypton's religious figure the Voice of Rao.[5]
 * Ian McElhinney as Val-El: Seg's grandfather, who defied death by going to the Phantom Zone and is a staunch believer in space exploration[5]
 * Colin Salmon as General Dru-Zod: The future son of Lyta-Zod and Seg-El and the new ruler of Krypton[6]
 * Hannah Waddingham as Jax-Ur (formerly Sela-Sonn) (main season 2; recurring season 1): ex-leader of the Black Zero terrorist group, and Val's former protégée[7]

Recurring

 * Alexis Raben as Rhom (season 1): A rankless Kryptonian, the mother of Ona, and a friend of the House of El
 * Tipper Seifert-Cleveland as Ona (season 1): The daughter of Rhom who is made a disciple of Rao upon being orphaned
 * Andrea Vasiliou as Kol-Da (season 1): A callous member of the Sagitari, and Daron's lover
 * Sarah Armstrong as Kiyo (season 1): A member of Black Zero
 * India Mullen as Sevi (season 1): A member of the Religious Guild who attended to the Voice of Rao
 * Sonita Henry as Raika: A member of the Cythonnite sect who is saved by Seg, and later assists him
 * Lukas Loughran as Junra: A member of the Cythonnite sect who is hostile towards outsiders
 * Emmett J. Scanlan as Lobo (season 2): A bounty hunter and assassin with regenerative powers and enhanced strength who is living on Colu and wants revenge against Brainiac[8]
 * Aoibhinn McGinnity as Lis-Ser (season 2): A Kryptonian scientist trying to put Doomsday under Dru-Zod's control

Guest

 * Rupert Graves as Ter-El (season 1): Seg's father.
 * Paula Malcomson as Charys-El (season 1): Seg's mother.[5]
 * Gordon Alexander as Quex-Ul (season 1): The former commander of Lyta's Sagitari squadron.
 * Staz Nair as Dax Baron / Doomsday: A Kryptonian who participated in a test which turned him into Doomsday. Doomsday appears in CGI throughout the first and second season while Nair appears in his Kryptonian form during flashbacks in the second season.
 * Toni O'Rourke as Wedna-El (season 2): A Kryptonian scientist who was responsible for creating Doomsday.
 * Dempsey Bovell as Van-Zod (season 2): A Kryptonian scientist who was also responsible for creating Doomsday.

Episodes
Main article: Krypton (Episode Guide)

Seasons

 * Season 1 (2018)
 * Season 2 (2019)