Alternate timeline (A Christmas Carol)

In an alternate timeline, Kazran Sardick was a cruel and heartless man who only cared about money before the Eleventh Doctor altered the past to change Kazran into a better person. (TV: A Christmas Carol) This was the original timeline before it was altered by the Doctor.

A harsh upbringing
When he was twelve and a half, there was an incident where the sky fish attacked Kazran Sardick's school. As Kazran was sick that day, he missed the experience and all of the other children were left with stories while he had nothing. Kazran, a kind-hearted and curious child, became interested in the sky fish and seeing one for himself. However, when Kazran was recording his video diary on his attempts, Kazran was found out by his cruel and unforgiving father. Elliot struck Kazran across the face and angrily berated the young boy for what Elliot saw as foolishness. Kazran was left crying all night and would later state that he learned an important lesson that night: no one cares.

Kazran then grew up under the cruel thumb of his father. Now believing that no one cared and with his father as his only role model, Kazran began to become cruel and heartless himself like his father. After Elliot built a machine to control the cloud belt, he gave Kazran control of it as well. (TV: A Christmas Carol)

A cruel and heartless man
By the time he was an old man, Kazran had no heart at all and only cared about money. He was still haunted by the memory of his father who had been dead for over twenty years and kept his chairs facing away from a portrait of Elliot on the wall to avoid all reminders of him. Despite his cruel and heartless nature, Kazran could not bring himself to ever harm a child, haunted by the memory of his own father's abuse.

On Christmas Eve when Kazran was old, he was visited by the family of Abigail Pettigrew who wished for Kazran to release her for one night so that she could spend Christmas with her family. However, Kazran cruelly rejected their attempts as they could not pay the debt that Abigail had originally been collateral for.

At the same time, a spaceship with Amy Pond and Rory Williams aboard was crashing towards Sardicktown. With the only way to save them being Kazran's machine, the Eleventh Doctor arrived while Kazran was arguing with Abigail's family. As he got nothing out of it, Kazran refused to save the ship, but held himself back from striking the family's young son, something that was noted by the Doctor. (TV: A Christmas Carol)