Silas Stone was born on May 2, 1957, in Metropolis City. After a catastrophic incident, Silas' son, Victor, lost everything but his torso, half of his arms and head, causing Silas to bring him to S.T.A.R. Labs. Silas desperately attempted to revive his son using normal medical procedures, however none had succeeded.
Frustrated and out of options, Silas resorted to activating a mysterious alien Mother Box from Apokolips to help his son. As Silas brought the Mother Box to Victor, it generated electrical discharges and disintegrated into Victor, creating appendages and repairing his body whilst also causing Victor intense pain and suffering. All of this was filmed, later found and kept by Lex Luthor.
Silas was later kidnapped by Steppenwolf, the cruel main commander of the Parademons armies, which were all sent together with Steppenwolf to Earth in order to obtain the Mother Boxes and to bring them to Darkseid. As a result, Steppenwolf has kidnapped almost every single human from Earth and tortured them to learn what they know about the locations. One of those humans were Silas, but he later had been rescued by the Justice League team, in which his son is a member of.
Silas loved his son Victor more than anything and would do anything to save him from death, and he used a Mother Box to save him. Victor was rejected by the public and Silas had to hide him.
When Steppenwolf's Parademons kidnapped him along with all the other S.T.A.R. Labs employees, he was brave enough to not tell Steppenwolf where the final Mother Box was. Soon after, he and the other employees were saved by the Justice League.
- According to his bio on the computers when Diana is tracking Victor Stone, Silas' phone number is (740)-130-8923.
- Silas' address is 26 Centennial Street, Gotham City.
- Silas' place of birth is Metropolis City.
- In August 2018, it was confirmed that Silas Stone was killed off about halfway through the film in the Snyder Cut. The last message that Silas recorded for his son would then play over Justice League's final montage, those lines were instead given to Lois Lane.