Mackenzie “Mack” Boyd is the long-lost younger brother of Moira Dingle.
1979-2020: Life before Emmerdale
Mackenzie was the second child of Ann Boyd and her husband, after Moira. Mackenzie’s childhood was marred by his father’s alcohol-induced abuse, despite his mother’s best efforts to keep him and Moira safe.
When Mack was 10, Moira left home after taking the blame for their mother having an affair with their father’s best friend. In Mack’s eyes, this was Moira abandoning the family - though Moira herself believed her leaving would be the end of their father’s abuse - and he developed a loathing for the sister he had once looked up to.
As he approached adulthood, Mackenzie often found himself on the receiving end of beatings from his father as he often tried defending his mother when fights broke out. Eventually Mr. Boyd died, and Mack had delved into the crime world, mostly dealing in stolen goods.
2020- : Arrival, reuniting with Moira, and dodgy dealings
In 2020, Mackenzie’s mother fell terminally ill and she asked him to track down Moira so they could make amends.
On the outskirts of Emmerdale Village in Yorkshire, Mackenzie ran into a woman after his car broke down. The woman - Charity - fixed the car while flirting with Mackenzie, leading to them kissing. They were photographed by an unknown person, who subsequently handed the photos to Charity’s fiancée, destroying their relationship.
"Down for left, up for right, you ever heard of a thing called indicators?" - First line to Charity Dingle after she nearly drives into him.