In the 2025 film *Mickey 17*, death is a central plot mechanic, as the protagonist is an "Expendable" whose job is to die in place of the colonizing crew. While the main character dies multiple times, several other characters meet permanent ends.
### **Mickey Barnes (Robert Pattinson)**
As an "Expendable," Mickey is reprinted (cloned) with his memories intact every time he dies.
* **Mickeys 1–16:** These versions die during the four-year journey and the early colonization of the ice planet Niflheim. Their deaths include radiation poisoning, lethal infections, and industrial accidents. One specific death shown involves Mickey being stranded outside the spaceship and exposed to extreme radiation; his hand freezes in the vacuum and is snapped off by scientists to "study" the effect before he dies.
* **Mickey (Printing Error):** A specific clone dies shortly after being printed due to a machine error. The scientists, led by Dorothy, decide to let him die rather than fix him, as a "fresh" copy would be more efficient.
* **Mickey 18:** This version is more aggressive than Mickey 17. In the film’s climax, Mickey 18 performs a "murder-suicide" to save the colony and appease the native "Creepers." He attacks the colony leader, Kenneth Marshall, and detonates a bomb vest strapped to his chest, killing both of them instantly.
### **Major Supporting Characters**
* **Kenneth Marshall (Mark Ruffalo):** The egomaniacal leader of the expedition is killed during the climax. After he attempts to exterminate the native Creeper species, **Mickey 18** tackles him and detonates an explosive vest, blowing both of them up.
* **Ylfa Marshall (Toni Collette):** Kenneth’s wife and co-leader survives the initial explosion but is later devastated by her husband's death. She is placed in a psych ward and eventually **commits suicide by slitting her wrists**.
* **Jennifer Chilton (Ellen Robertson):** A security agent and partner to Kai Katz. During a mission on Niflheim, she shoots at a "Creeper" clinging to an ice ceiling above her. The impact causes the **ice to collapse, crushing her to death** under falling rocks and ice.
* **Samuel Blenkin (Loan Shark Associate/Borrower):** A representative of the loan shark who followed Mickey into space to collect his debt. During a confrontation in the brig, he attacks Mickey’s friend Timo, and **Timo kills him in self-defense**.
### **Other Deaths**
* **Luko (Creeper Baby):** One of the two baby "Creepers" captured by the humans. During a chaotic ceremony where Kenneth Marshall tries to use an alien rock as a monument, Luko is **shot to death by security forces**.
* **Alan Manikova’s Victims:** In a backstory sequence, it is revealed that a serial killer named Alan Manikova used the "reprinting" technology to create doubles of himself to serve as alibis while he **murdered homeless people** on Earth. This history is why "Multiples" (having two living versions of a person) are banned on the ship.