Mark Grayson has been trying to prove to the world he’s NOTHING like his father, the ruthless Omni-Man (Nolan Grayson). In the season 4 premiere of Invincible, titled “Making the World a Better Place,” he takes one step in that direction. The worst part is that he was probably right to do it.
It’s a shocking moment that not only shows where Mark is mentally. It also highlights how the no-kill rule in superhero stories can cause more harm than good at times.
The Sequids Invade Earth
The Sequids are parasitic aliens that latch onto a host’s nervous system and absorb them into a hive mind. Physically, they’re small and unimpressive on their own. And yet, the Sequids are completely terrifying at scale.
One surviving host is all they need to reproduce. One.
Rus Livingston is an astronaut who unknowingly had a Sequid hiding in his stomach since went to Mars back in season 2. When he returns to Earth, he vomits up the Sequid, which quickly repossesses him. It eventually winds up in the sewers, where it reproduces, then it proceeds to infect and mind control other humans.
Once the Guardians of the Globe discover what’s happening, they establish a containment dome over the infected city. They’re able to hold the line with neural disruptors that weakens the Sequid’s hold on their victims. But Rus, who’s now the primary Sequid host, overwhelms the dome’s defenses.
While Bulletproof is racing over to Rus with a disruptor, Cecil contacts Mark via headset to warn him that the dome won’t hold much longer. Traumatized by past failures, Mark doesn’t wait for Bulletproof. He kills Rus by punching his fist through Rus’ head.
A Hero Worn Down From Trauma
It’s a brutal choice especially since Bulletproof was on his way with a non-lethal method. But Mark had no way of knowing if Bulletproof will make it in time, and he’s been burned before.
To understand why Mark made that call, you have to understand what the show has put him through.
Over three seasons, Invincible has made it painfully clear that Mark’s reluctance to kill his enemies doesn’t always keep the world or the people he loves safe. Mark chose to spare Angstrom Levy and millions of innocents lost their lives as a result. His inability to kill Conquest nearly costs Atom Eve her life. The Invincible War has left the world devastated.
These moments have changed how Mark reacts to situations like the Sequid invasion. He isn’t acting on his idealism anymore. His exhaustion and guilt are fueling him now.
The Problem With “No-Killing” Villains
Superhero stories usually treat restraint as a show of moral superiority. They will never kill their enemies because to them, if they stoop to the villain’s level, then they’re no better and undeserving of being called a hero.
Batman doesn’t kill the Joker out of fear he’ll fall down a slippery slope. Superman always finds another way. Spider-Man believes in rehabilitating criminals, not murdering them. It ties back into the message of “great power equals great responsibility”. There is value in showing someone with that much power choosing restraint and mercy. But in a morally gray world like Invincible, the no-kill rule might be extremely naive.
Sometimes the enemy doesn’t give a fuck about your moral code. Worse, they’ll use it to exploit the hero. There’s no fear, no real consequence outside of being sent to a jail you know you can break out of later. In that context, the no-kill rule feels more like a privilege instead of a philosophy. It’s something you can stick to only when the stakes aren’t as high.
The villain will continue to lie, cheat, steal, kill, etc., because they know the hero doesn’t have the balls to stop their reign of terror for good. Eventually, the no-kill rule stops being noble because it enables the very danger it’s supposed to prevent.
Still, there’s a difference between letting go of strict ideals and making murder a regular habit. It’s not so much that Mark killed Rus, it’s what that choice says about the person Mark is becoming.
Where is Season 4 Taking Mark?
Mark’s decision to kill Rus is a turning point for him this season.
He’s still trying to make the world a better place, but sometimes that desire causes him to kill an innocent man to save billions. Both of those things are true at the same time, and that internal conflict is what makes Invincible so compelling.
Right now, Mark’s growing ruthlessness is making him more efficient at his job. Yet every time he makes a decision like this, he’s moving farther away from the idealistic hero he wants to be. Season 4 of Invincible will dive into how these situations affect Mark’s psyche.
Because how many “right calls” can he make before he morphs into someone he barely recognizes?
