Garrett Davis was the younger brother of Vince Davis from the WB TV series Smallville.
He appeared as the main antagonist in the Season Three episode "Resurrection".
He was portrayed by James Kirk.
Garrett and his brother Vince were both orphaned at a young age when their parents died in a car accident. Vince raised Garrett and the boy looked at his older brother as a father figure.
Vince suffered a rare liver disease and was hospitalized. Garrett spent all his time in the hospital and ran into Clark Kent. Clark was very worried about his father, but Garrett tried to encourage him until they hear a code blue for Vince's room.
They rush down the hall and see Dr. MacIntyre attempting to revive Vince, but he is not successful and sadly passes away. With Vince gone, Garrett was alone but had a relative in Germany who would arrive in a few days. Instead of being placed in foster care, Mrs. Kent invites Garrett to stay with them instead.
At the Kent Farm, Garrett and Clark were talking about Vince when Martha comes in to tell Garrett the crematorium has called asking where they should send Vince's ashes. Garrett was confused and Clark takes him to sort it out.
Garrett knows that Vince wanted to be buried next to his parents, but he was given file with Vince's signature on the cremation form, but he believes it was forged. Clark and Garrett return to the Kent Farm just before Vince arrives.
Vince appeared alive again after having left a laboratory in Metropolis. Unfortunately, whatever had brought Vince back to life only had a temporary effect and Vince fell ill, finding himself hospitalized yet again.
When Vince mysteriously came back to life, Clark helped him get him back to the hospital. Dr. MacIntyre explained that Vince's liver was rapidly deteriorating and Garrett was distraught at the idea of losing his brother again.
Unable to cope with the possibility of watching his brother die again, Garrett returned to the hospital with a bomb that his brother used in his demolition work strapped to his chest demanding that Vince receive a liver transplant while he held the medical center hostage.
Clark acquired a vial of Lazarus serum that had been used to revive Vince, hoping that another dose would keep him alive. Garrett takes the call from Clark and agrees to trade most of the hostages for the vial of serum.
Clark is careful to keep his distance, but when the serum boils in Garrett's hand, Clark suspects that it is made from his blood. Dr. MacIntyre injects Vince in the correct location, but it does not revive him.
Garrett insists that he transplant Jonathan's liver to Vince. Dr. MacIntryre tries to explain that there is almost no chance of success, but Garrett is too desperate to listen and there are twenty other patients in the building. Just as he was about to push the button on the detonator, a police sniper outside the hospital fired a round that penetrated Garrett's chest, killing him.
In his death throes, Garrett pressed the detonator switch, but Clark used his super-speed to grab a lead apron from the radiology lab and with it he grabbed the kryptonite bomb off Garrett. Protected from the kryptonite radiation, Clark rushed out into a field and threw the bomb down a well just as it exploded far from the medical center.