Callum Lawrence

 is a character on Treason. He is portrayed by Samuel Leakey.

Biography
Callum is the son of MI6 agent Adam Lawrence and step-son of ex-army officer Maddy De Costa.

Throughout Treason
Adam goes to Callum's school to talk about his career in the MI6.

After Adam learns that the CIA was behind Ella's kidnapping, and that his wife, Maddy De Costa, is in contact with Dede Alexander, he moves out and takes his kids to Martin's house. He tells Martin's wife, Mary, that he and Maddy fought, so they needed a place to stay. While Mary is distracted playing piano with the kids, Kara sneaks around the basement searching for a file about Baku, as she needs to know who killed the 5 men who worked for her in Baku. She had promised these men safety, so she owed it to their families to tell them who had killed them.

Adam takes his children to a house, where they hide. They are joined by Maddy. While Maddy and Adam argue, a shooter watches them from outside. Callum, who is in bed, hears noises and goes outside. He is grabbed by Kara, who drags him inside, much to the surprise of the others. She reveals that Martin ordered a hit on him. Kara and Maddy run outside to create a distraction. Kara runs into the shooter's car, dodging the shooter's bullets. Just as the shooter aims his gun at Kara, Maddy shoots him from behind. They move his body out of the way, and leave the house.

Adam, Maddy, Kara, Ella and Callum go to Kit Harper's house. Kit is a lawyer who was Adam's ex-wife's best friend. They stay at his house. During Adam and Maddy's conversation, they are interrupted by Callum asking where his stuffed toy Samson is. It is revealed that Samson was found at the house near the shooter's body. A man calls Martin to inform him, and they believe Adam and Kara are working together. Martin calls Dede and arrange to meet up.

After Martin is exposed at a press conference, and is arrested for his crimes, Maddy reunites with Ella and Callum.

Appearances

 * Treason