Character Relationship Map: The Mechanic

Characters

• Arthur Bishop (played by Charles Bronson) — protagonist

  Top contract killer known as a mechanic who works for a secretive criminal organization. He leads a solitary, lavish lifestyle but suffers severe stress requiring antidepressants. He reluctantly train...

• Steve McKenna (played by Jan-Michael Vincent) — protagonist

  Narcissistic and ambitious son of the organization's head. He becomes fascinated by Bishop and insists on learning his trade. After participating in a botched hit, he accompanies Bishop to Italy, atte...

• Harry McKenna (played by Keenan Wynn) — supporting

  A high-ranking head of the criminal organization known as Big Harry. He suffers from a weak heart and is killed by Bishop, who manipulates him into triggering a fatal heart attack during a staged assa...

• The Mark (played by Enzo Fiermonte) — minor

Canonical Relationships

Family, romantic, and professional connections based on plot evidence.

• Arthur Bishop → The Mark (Professional Assigned Assassin) — The Mark is identified in the character list as a minor character; the plot reference does not establish further interaction beyond the intended mission.

  The plot describes Bishop and Steve approaching a boat where their intended victim is supposed to be, but the operation is a trap.

• Arthur Bishop → Steve McKenna (Professional Mentor And Apprentice) — Bishop trains Steve as a contract killer.

  Bishop offers to teach Steve his trade and make him an associate, then trains him in finding a target's weakness.

• Steve McKenna → Harry McKenna (Family Son) — Steve is Harry's son, though he says he had not realized Harry was murdered.

  The plot identifies Steve as Harry's son, and Steve asks Bishop whether he killed his father.

• Arthur Bishop → Harry McKenna (Professional Hitman And Target) — Bishop carries out the organization's contract on Harry.

  Bishop is assigned to kill Harry. He stages the attack to trigger Harry's weak heart and then smothers him.

Story Analysis

A solitary professional killer trains an ambitious apprentice whose betrayal leads to a lethal contest of planning and counterplanning.

Plot Progression

1. A Mechanic Under Pressure — Bishop lives alone in luxury while enduring severe stress and taking antidepressants. He is hospitalized after losing consciousness, then accepts a mission to kill Big Harry.
2. The Father's Funeral — Bishop kills Harry by exploiting his weak heart. At the funeral, Steve becomes fascinated by Bishop and presses him to reveal his profession.
3. Training and Consequences — Bishop accepts Steve as an apprentice and teaches him how to identify a target's weakness. Their messy joint assassination draws a warning from the organization.
4. The Italian Trap — Bishop takes Steve on an urgent assignment in Italy despite finding a file about himself among Steve's belongings. The supposed target's boat proves to be a trap, and they survive an ambush.
5. Poison and Countertrap — Steve poisons Bishop's wine and reveals his plan to act independently. Steve later returns for his Mustang, where Bishop's concealed delayed trigger kills him.