"What I did... I lost your mother in that accident. I wasn't about to... I couldn't bear to lose my son."
―Silas Stone to Victor Stone[src]

Silas Stone is the head of S.T.A.R. Labs, directly responsible for the transformation of his human son, Victor Stone, into the mechanical metahuman Cyborg.


Early Life

Silas Stone was born on May 2, 1957, in Metropolis City.[1] 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.[2]

Saving his Son

"2400 hours and 2 minutes. Subject declining rapidly. All procedural interventions have failed. Outcome... would be death. Dr. Silas Stone suspending all clinical protocol. US Gov object 6-19-82 is successfully activated."
―Silas Stone[src]
Silas Stone with - Cyborg --Mother-Box

Silas uses a Mother Box to save his son Victor

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.[2]

Kidnapped by Steppenwolf

Silas was later kidnapped by Steppenwolf, the cruel commander of the Parademons armies, which was sent to Earth in order to obtain the Mother Boxes and to use them to terraform Earth. After obtaining two of the boxes, Steppenwolf has kidnapped various humans from around S.T.A.R. Labs, and tortured them to learn what they know about the location of the box that was entrusted to mankind and was lost eons ago. 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.[1]


"I would die before I tell you!"
"At last, one that doesn't whine. But you will scream.
―Silas Stone and Steppenwolf[src]

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. When Victor chose to hide from the public, Silas helped him to hide.

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. [3]



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