Cameron Cuffe is delighted to be a Kryptonian.

Shortly after it was revealed that he was cast as the lead of Syfy’s new TV pilot “Krypton,” the young British actor took to his Twitter account to share the good news.

“Proud to be a son of Krypton,” Cuffe wrote on Twitter, alongside a link to Deadline’s story announcing his casting.

Cuffe will play Superman’s grandfather, Seg-El, in the potential series set two generations before the destruction of the Man of Steel’s home planet. Seg, who is blessed with an intuitive brilliance for all things technical, is the scion of the once-prosperous El family. In the pilot, however, Seg is living in the planet’s lowest caste after his family was stripped of its rank. “Krypton” follows Seg as he fights to redeem his family’s honor and save his planet from chaos.

According to Seg’s character breakdown obtained by TVLine last June, Seg is described as “athletic, quietly confident and in his 20s.”

Cuffe joins previously announced cast member Georgina Campbell, who will play Lyta Zod. Lyta is a reluctant cadet and warrior in the Kryptonian military, who is in a forbidden relationship with Seg.

Other key roles that are yet to be cast include Seg’s father, Ter-El;  Seg’s grandfather, Val-El; Lyta’s mom, Alura Zod, and a “chiseled, twenty-something bad boy,” Dev Em.

Although Cuffe has already starred in several stage productions, he is considered as a newcomer both on TV and in the big screen. He recently appeared in the Stephen Frears-directed feature “Florence Foster Jenkins,” and recurs in the upcoming ITV drama “The Halcyon.”

David S. Goyer and Damian Kindler, who both developed the show, executive produce “Krypton” for Warner Horizon and Phantom Four, respectively. Aside from serving as a co-executive producer, Colm McCarthy will also direct the pilot — which will be filmed in Serbia — from a story and teleplay by Goyer and  Ian Goldberg.