<Dl> <Dd> A monstrous creature created by Kryptonian technology, initiated by Luthor adding his own blood and General Zod's DNA into the system, after learning how to do so from the Kryptonian AI aboard the crash site of the alien ship of the same origin . Downes portrayed the character through motion - capture and voice - over work . The role was kept under such heavy secrecy that Downes did not know who he was playing until the second trailer was released . On his role, Downes stated that he was proud to be part of the film and expressed his admiration in helping bring Doomsday to life in Batman v Superman: Dawn of Justice . When asked why Doomsday was chosen to be in the film, Zack Snyder stated "To go up against heroes like Batman and Superman, we wanted to introduce one of the DC Universe's most iconic and powerful villains", further explaining, "He is essentially an unstoppable force . He poses a real threat to the world within the film ." Snyder has confirmed Doomsday will return in the DCEU, stating "Well, you have Doomsday, right? He doesn't just crawl out of the ground . He has his own mythology, right? So that has to be explored ." Downes has previously provided voice roles for various DC animated films and shows as well as DC video games . </Dd> </Dl> <Dd> A monstrous creature created by Kryptonian technology, initiated by Luthor adding his own blood and General Zod's DNA into the system, after learning how to do so from the Kryptonian AI aboard the crash site of the alien ship of the same origin . Downes portrayed the character through motion - capture and voice - over work . The role was kept under such heavy secrecy that Downes did not know who he was playing until the second trailer was released . On his role, Downes stated that he was proud to be part of the film and expressed his admiration in helping bring Doomsday to life in Batman v Superman: Dawn of Justice . When asked why Doomsday was chosen to be in the film, Zack Snyder stated "To go up against heroes like Batman and Superman, we wanted to introduce one of the DC Universe's most iconic and powerful villains", further explaining, "He is essentially an unstoppable force . He poses a real threat to the world within the film ." Snyder has confirmed Doomsday will return in the DCEU, stating "Well, you have Doomsday, right? He doesn't just crawl out of the ground . He has his own mythology, right? So that has to be explored ." Downes has previously provided voice roles for various DC animated films and shows as well as DC video games . </Dd> <P> Additionally, Jeffrey Dean Morgan and Lauren Cohan portray Thomas and Martha Wayne, Bruce Wayne's deceased parents, Patrick Wilson portrays the President of the United States in a voice role, and Michael Cassidy portrays Jimmy Olsen, a CIA agent . Reprising their roles from Man of Steel are Harry Lennix as Secretary Calvin Swanwick, Christina Wren as Major Carrie Farris, Kevin Costner as Jonathan Kent, Rebecca Buller as Jenny Jurwich, Chad Krowchuk as Glen Woodburn, and Carla Gugino as the Kryptonian A.I. Kelor . The corpse of General Zod also appears in the film in a crucial role; however, Michael Shannon did not film any scenes for the film and the corpse was created using the physique of fitness model Greg Plitt and a head - shot of Shannon . Mark Edward Taylor portrays Jack O'Dwyer, an executive of Wayne Enterprises . </P> <P> Ezra Miller, Jason Momoa, and Ray Fisher appear as Barry Allen / Flash, Arthur Curry / Aquaman, and Victor Stone / Cyborg respectively in brief appearances, which will lead to their inclusion in the Justice League film . Joe Morton appears in a role as Silas Stone, Victor's father . U.S. Senator Patrick Leahy makes a cameo appearance as Senator Purrington, whilst U.S. Senator Debbie Stabenow also makes a cameo as the Governor of New Jersey . Neil deGrasse Tyson, Soledad O'Brien, Anderson Cooper, Nancy Grace and Charlie Rose appear as themselves . Jena Malone was cast as S.T.A.R. Labs scientist Jenet Klyburn, but her scenes were cut from the theatrical release, along with Man of Steel characters Coburn Goss as Father Leone and Joseph Cranford as Pete Ross; they were restored for the Ultimate Edition home media release . Talk show host Jon Stewart has a cameo in the extended cut . To further establish the interconnection between the films of the shared universe, Chris Pine appears on Diana Prince's photo as Steve Trevor, as well as Saïd Taghmaoui, Ewen Bremner, and Eugene Brave Rock as the members of his team: Sameer, Charlie, and Chief, which they reprised in Wonder Woman . </P>

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