Up Your Arsenal logoSecret Agent Clank logo

That's true, but it's not as black and white as you seem to think. You can do the wrong things for the right reasons.
— Klunk, to Clank, SAC

Klunk (occasionally spelled called Clunk)[3] is an antagonist in Up Your Arsenal and the main antagonist in Secret Agent Clank. He is the evil counterpart of Clank who was created by Dr. Nefarious.

Klunk was originally created by Dr. Nefarious on planet Mariona to spy on the Q-Force by impersonating Clank. He impersonated Clank after Nefarious and Courtney Gears abducted Clank at the Holostar Studios. Klunk appeared to be identical to Clank in functionality, able to use the Heli-Pack, Thruster-Pack and transform into a giant form, and had normally red eyes which he could switch to green to fool Ratchet. After Nefarious was defeated, years later he was the mastermind behind the theft of the Eye of Infinity, though he was defeated by Clank and transformed into a vacuum cleaner.


Up Your Arsenal


Klunk, laughing

Dr. Nefarious created Klunk on planet Mariona.[1] Klunk then replaced Clank after he complete filming an episode of Secret Agent Clank featuring Courtney Gears. Courtney then kidnapped Clank after the film, and took him to Nefarious to convince him to work for them. Clank refused to help them, and was imprisoned, while Klunk took Clank's place and spied on Ratchet and the Q-Force.

Klunk continued to pose as Clank, able to use the Heli-Pack or Thruster-Pack for Ratchet. Klunk helped Ratchet defeat Courtney Gears on the Obani Draco, felling no remorse fighting an ally as she was a "disposable pop star". When Ratchet and Captain Qwark infiltrated Nefarious' Leviathan, Klunk sent a message to Nefarious alerting him to their presence.

Eventually, Ratchet visited planet Kerwan to stop Nefarious from using the Biobliterator to turn the population of Metropolis into robots. Ratchet failed to stop the assault, and then ran into Nefarious on board a set of hover trains. Nefarious and Lawrence revealed Klunk's true identity as Ratchet saw the real Clank imprisoned, and then left the planet while Klunk transformed into Giant Klunk and fought Ratchet. Ratchet managed to defeat Klunk and free Clank.


Ratchet and Klunk deadlocked

Klunk pictured alongside Ratchet

When Vox News reporters Dallas Wanamaker and Juanita Alvaro slandered Ratchet in Deadlocked, they made reference to Ratchet and Klunk's battle with Courtney Gears, without making a distinction between Klunk and Clank. They depicted him and Ratchet as psychotic fans who attacked Gears.

Size Matters

Clank factory robot

Klunk working as a factory assembly line robot

Klunk did not appear, though it is noted that he spent time as a factory assembly line robot making hi-tech toilet seats after Nefarious's defeat. He was said to have quit the day Ratchet and Clank defeated Otto Destruct.

Secret Agent Clank

Don't kill him too quickly, boys!
— Klunk to his minions, SAC
Klunk was the mastermind behind the theft of the Eye of Infinity, having created a mind control device to control Ratchet and frame him for the crime. He donned a mech suit, going under the alias of the "Kingpin" to hide his true identity. Under this alias, he had forced a scientist to create a laser that could blow up every planet in the Solana Galaxy using the Eye of Infinity as a refractor. Meanwhile, he sent B.A.R.N.E.Y. to follow Captain Qwark, pretending to be writing Qwark's biography, though his actual mission was to trail Clank as he knew that Qwark would follow Clank seeking glory.

Klunk's true identity was not revealed until Clank found him in the Spaceship Graveyard, where Clank found him after he exited the Kingpin suit. Clank came across the suit and thought he was staring at his own reflection, and was then seized by Klunk's guards as soon as he noticed. Klunk ordered two guards to restrain him, and then used Clank's ship to escape, asking the guards to kill him (but not too quickly).

Vacuum Klunk

Klunk converted into a vacuum cleaner

Klunk was encountered for a final time in his underwater base on planet Hydrano. Klunk scolded Clank for his relationship with Ratchet, before revealing his plan to make "squishies" in the galaxy bow to him as a hero: using the laser, the Eye of Infinity would be poised to destroy every planet in the galaxy, but Klunk would kill Clank and pose as him and broadcast himself dismantling the satellite, fooling the galaxy into thinking Klunk was a hero while Ratchet remains in prison for life.

Klunk eyes glow

Klunk's eyes glowing, suggesting he is still active

The two then engaged in a showdown in which Klunk made use of his own martial arts skills, and various mech suits he had created (including a suit of Nefarious and a robotic Ratchet suit). Klunk halfway through revealed a backup plan: he activated the laser satellite, believing he alone knew how to stop it, so that if Clank defeated Klunk, the galaxy would still be destroyed. However, Klunk was defeated, and Clank was able to deactivate the satellite.

Ms. Cute Anastasia Bot then debriefed President Phyronix about Klunk's plan and referred to his "demise" at the hands of Clank. The president then released Klunk's body back into Ratchet and Clank's custody. Ratchet then modified it to become a vacuum cleaner for Clank's apartment. Klunk's eyes then glowed and blinked, suggesting he may still be active.

Tools of Destruction

In Tools of Destruction, when inside the IRIS supercomputer, one of the questions Ratchet could ask it was, "Who is Clank's evil counterpart?" The response it gave was "Clunk".

A Crack in Time

Klunk does not make an appearance in A Crack in Time, but is mentioned in a Galactic Trivia. Dr. Nefarious planned to name the Tombli Outpost on Zanifar as the "Klunk Memorial Work Camp and Day Spa" in honor of him, though Klunk's estate lawyers prevented this.



Klunk SAC (1)

Klunk as the Kingpin

Klunk appeared almost identical to Clank, though he is identified easily by his eerily red eyes and sinister laugh. Klunk could hide or reveal his red eyes whenever he chose to in order to pose as Clank. While transformed into Giant Klunk, he also had a darker color scheme than Giant Clank.

In Secret Agent Clank, he wore a golden suit and had a goatee, making him even more distinct.


Klunk was more evil and selfish than Clank, with him seemingly showing no remorse for the deaths of both his allies and enemies, and quick to abandon then. He almost swore after the President gave his condolences to the Q-Force about their apparent loss of Qwark, remarking "What a load of bullsh-" before Ratchet hushed him.

Klunk appeared to share Nefarious's dislike of organic life forms, referring to them as "squishies", a term that Nefarious used to describe organics. He also appeared to enjoy ordering others around, having gathered an army for himself. He was also shown to be cunning, having constructed a very elaborate plan to destroy or rule the galaxy, that only Clank himself was able to see through.


You're not the only one who's been practicing the stealthy arts.
— Klunk, SAC
Giant Klunk

Giant Klunk

Klunk was fitted with Heli-Pack, Thruster-Pack and Hydro-Pack upgrades to pose as Clank. During the boss fight against him in Up Your Arsenal, Klunk exhibited an ability to turn into an Ultra-Mech like Clank, but without using an Ultra-Mech pad. This Giant Klunk was a stronger and more well-armored than Giant Clank was, and possessed all the attacks that Giant Clank had with more power, as well as some that were unusable by Giant Clank. He could fire missiles, hover with jet boosters, and hurl energy bombs.

Klunk practiced the stealthy arts after the defeat of Otto Destruct. In battle with Clank, Klunk proved able to use Clank-Fu, pilot mechanical suits he created, and also utilized his own pair of Jet Boots with a golden red thrust.

Behind the scenes

Klunk in a Tux

Klunk in Secret Agent Clank as a skin

Klunk was voiced by David Kaye, and had an identical voice to Clank.

In Up Your Arsenal, the player receives a few hints at Klunk's identity that Ratchet does not. While idle Klunk's eyes would periodically turn red for a few seconds in first person view. Additionally, the Thruster-Pack emits black flames rather than red.

The boss fight with Giant Klunk in Up Your Arsenal occasionally glitches and his movement can cause him to fall underneath the train and be out of Ratchet's reach. In these instances, the player must reset the fight manually.

While fighting Dr. Nefarious at the Biobliterator launch site on Mylon, Ratchet could hide behind various pieces of scrap and debris, and one of them was a blackened, Klunk-like robot body, suggesting it could be one of Nefarious' early builds of Klunk.

Klunk with his gold tuxedo and goatee is also an unlockable skin in Secret Agent Clank.


Clank briefly appears with red eyes, like Klunk's, in the Ratchet & Clank movie

Klunk is possibly alluded to in the re-imagined series when Clank, upon being constructed, initially has red eyes.


  1. 1.0 1.1 Secret Agent Clank: Holo-Monocle scan
  2. Identical to Clank's height, which is 2'22" according to Insomniac
  3. Tools of Destruction: The IRIS supercomputer refers to him as Clunk