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Not much is currently known about Ren's personality, though it can be assumed that he had jealousy issues, specifically with his father.
From Ren's persepctive, Ishiro never gave him time due to his 'obsession' with Godzilla. Despite this, Ren worshipped his father and hoped that he would one day reconcile with him, the way Ishiro had reconciled with his own father before his death.
As the CEO of Apex Cybernetics, Ren seemingly respected Walter Simmons as his superior and complied with everything he said. Walter also seems to very fond of Ren as both a protégé and partner. However, when Walter wished to use the Hollow Earth energy on Mechagodzilla shortly after they acquired it, Ren intially protested since they had no idea of its possible side effects on the robot. However, Walter insisted Ren to pilot Mechagodzilla immediately due to being completely out of options how to stop Godzilla from destroying the base. Ren reluctantly followed through, which might have cost him his life.
The novelization reveals that Ren intended to kill Walter shortly after he was able to attain complete control of Mechagodzilla.
Godzilla vs. Kong
Ren and Walter eventually seek out geologist Nathan Lind, asking for his help in seeking out an energy in the Hollow Earth that can fuel a weapon capable of stopping Godzilla. They also present the Hollow Earth Aerial Vehicle so that a successful entry is possible.
At Apex headquarters in Hong Kong, Ren pilots Mechagodzilla as it successfully bisects an adult Skullcrawler with its proton scream. However, they need the energy from the Hollow Earth as an infinite sustenance for the mecha. When Maia Simmons successfully extracts a sample of the energy, Ren warns Walter about possible side effects in may have on Mechagodzilla. Knowing that Godzilla would destroy the base, Walter insists on start piloting, Ren reluctantly follows through.
As Ren starts to pilot Mechagodzilla with the Hollow Earth energy, the influx prompts Ghidorah's consciousness to override the systems and subsequently electrocutes Ren, possibly killing him.
List of appearances
- Godzilla vs. Kong (First appearance)
- Godzilla: King of the Monsters - The Official Movie Novelization (Mentioned)
- Godzilla vs. Kong - The Official Movie Novelization
- Ren's existence is first revealed in Godzilla: King of the Monsters - The Official Movie Novelization, two years prior to his live-action debut in Godzilla vs. Kong.
- Ren Serizawa is the 7th human villain in the MonsterVerse, followed by Walter Simmons, Maia Simmons, Emma Russell, Asher Jonah, Alan Jonah, and Preston Packard.
- Ren Serizawa is also the 5th male human villain, followed by Walter, Asher, Alan, and Preston.
This is a list of references for Ren Serizawa. These citations are used to identify the reliable sources on which this article is based. These references appear inside articles in the form of superscript numbers, which look like this: 
|Godzilla vs. Kong|