- "You made a new life, you'll find a way to back to it. It's time to go home."
- —Marcus to John
Marcus was an assassin and a mentor to the ex-hitman John Wick. He was eventually paid by Russian crime boss Viggo Tarasov to turn on John and kill him, but eventually decided not to and turned on Viggo.
Career as a Hitman
Marcus is an old guard who became an assassin. He is a battle hardened man who is reliable, and is one of the elites. He is a high class assassin who is John Wick's best friend and also a mentor to him and other hitmen.
A member of the old guard of assassins who is battle-hardened, reliable, and amongst the elite. About the character of Marcus, actor Willem Dafoe said, "Marcus is an assassin on a very high level. It's clear that he and [John] have a history, and he's something of a mentor to him. They’re friends, but it's a friendship that was made in a very dark world." Of Marcus's psychology, he also added that "He seems pragmatic; he seems fatalistic, which you would have to be in that line of work." Writer Kolstad stated, "Marcus is a father figure. But he’s a father in the sense that he’s the king of the pride. When a new lion takes over a pride, he slaughters all the cubs. Marcus is that guy."
Events of John Wick
Marcus is first seen talking to John after the death of his wife, Helen Wick. He talks to the him at the funeral, giving John good advice. Although not much is known about Marcus past and his history with John it is likely Marcus was still friends with John and was also friend with Helen after leaving his life of a hitman since he was at Helen's funeral.
Marcus appears again when Viggo Tarasov decides to hire him to kill John Wick. The assassin takes the job making Viggo believe he is going to kill John but eventually took the job to help John. After Viggo leaves Marcus opens up a secret room with all his guns in it Marcus decides to get out and use his sniper rifle to help his friend John. He then appears again while John is in the Continental Hotel resting after his fight with Viggo's men. He is on the roof of a building across the street he has a perfect shot to kill John but he doesn't. Marcus then sees Ms. Perkins coming to John's room to kill him and fires a warning shot to hit John's bed to let him know about Ms. Perkins trying to kill him. Marcus appears later on again when Viggo and his men capture John and Viggo's men try to kill him. Marcus shots the men who put a plastic bag over John's head and John gets free from the plastic bag and the ropes that have him tied to a chair.
After John finally finds Viggo's son Iosef and kills him, he and Marcus meet up one last time. John thanks Marcus for helping him but however unknown to both of them, Ms. Perkins is spying on them and then reports to Viggo about Marcus betraying Viggo and secretly helping John Wick and staying loyal to his friend. On his way back home Viggo has his men waiting next to Marcus' apartment when he gets closer but Marcus knows that he is being followed.
He was eventually taken up captive by Viggo, who surprised him when he was walking in the middle of a street. Viggo calls John and ironically states that he appreciates how he granted his son a swift death, and continues by saying that Marcus betrayed him for not fulfilling the contract, leaving him with no choice. Viggo blames Marcus for Iosef's death, saying "You had every opportunity to kill John Wick, and if you had done your job my son would be still alive!". Ms. Perkins soon shows up, but not for Marcus's surprise. Viggo taunts Marcus by saying he always liked him and noting that he is the last of the old guard. He continues by saying that unlike the others, Marcus would die his way, to which Marcus replies "No my good sir. I go out on my own." He is able to jump up and kill two bodyguards before being shot twice by Perkins. Viggo grabs his pistol and before killing him, Marcus mocks him by saying "See?". He is then shot six times by Viggo, who later replies to a dead Marcus "Well played old friend."
- Expert Marksman: He is highly skilled in using a sniper rifle, as he's seen in the movie saving John Wick several times by using one.
- Skilled Combatant: He has moderate skill in fighting, as he's seen elbowing one of Viggo's guards then grabbed the other by the neck, killing both of them with a pistol.