The Senior Citi-Zombies are the secondary antagonists of Operation Z.E.R.O.; they're a form of ancient undead minions created by Grandfather, who can transform humans or animals into them through physical contact. When turned into one, a person becomes extremely old and decrepit to the point of being corpse-like in appearance, with other zombie-like qualities such as yellow eyes and pale/wrinkled skin. In addition, they also become Grandfather's mind-controlled slaves. After Grandfather is decommissioned, every one of the zombies is transformed back into their normal state, thus freeing them from Grandfather's control.
Transformation[]
Like Grandfather himself, Senior Citi-zombies can turn other people and animals into their kind through physical contact. They can also rapidly age inanimate objects and structures in to old fashioned objects.
Zombification consists of a person's body flashing, with streams of light pouring out of the mouth, eyes, and other parts of the the body. During this process, the person's body rapidly ages.
It is shown that the zombification process is slowed by having the Book of KND, or completely halted if the zombie's hold is broken, as shown with Numbuh 0.
Some members of Sector V, Tommy, and Numbuh 362, take some time to be transformed, as rather than an near-instantaneous transformation seen in the villains and normal KND Operatives, they require time to be transformed. Numbuh 2 is shown to be zombified slowly, both Tommy and Numbuh 4 scream for a significantly longer time than normal operatives (up to 4 seconds vs. the typical zombification which lasts 1.5-2 seconds), and Numbuh 362 required multiple zombies (at least three) to hold her down to complete the process (her position as supreme leader may have also played a role in slowing her zombification). Numbuh 5's transformation was quite instant (as she was willing to sacrifice herself for the rest of Sector V) and Numbuh 3's transformation was not shown but likely similar to Numbuh 5.
Even though zombification typically makes a lot of noise, the victim being surrounded with flashy lights, and typically screams of terror, some transformations were completely silent. Examples would be Numbuh 3 and Numbuh 86, when Numbuh 3 got infected by the Hamsters and/or Numbuh 5, and when Numbuh 86 is transformed in the closet with Numbuh 2.
Animals could still get zombified if they make any contact with the zombies. This is shown with the Hamsters in the treehouse, who become zombified since they touched Numbuh 5.
Appearance[]
When a victim is zombified, they simply gain a greyer variant of their outfit, in addition to the usual greenish-yellow blank eyes and wrinkled skin. This is easily seen on the operatives with the yellow and black outfits with cross-box helmets.
Some of them also gain grey hair and/or baldness.
This resembles a senior citizen in some ways.
Behavior[]
Senior Citi-Zombies appear to be extremely powerful and seemingly unkillable, as shown by the zombified Toiletnator. Victims of zombification retain aspects of their personalities, but lose their free will and become Grandfather's evil slaves regardless, as shown when Sector V attempted to transform Nigel Uno or when Numbuh 60 assisted in the transformation of Numbuh 362.
A zombie stands around while a Moonbase operative walks past him, implying that zombies at times experience amnesia and forget that they are to attack and zombify the KND.
Senior Citi-zombies, in addition to being able to talk, still have the intelligence to drive vehicles, as shown by some being seen driving cars (jalopies) and operating machinery during Grandfather's takeover.
History[]
The first people turned into Senior Citi-Zombies were the villains at the Convention Center, starting with Toiletnator. This already-sizable army then proceeded to invade all the KND Treehouses, zombifying everything in their way in the process, until the entire world was under Grandfather's control, eventually even seizing the KND Moonbase. The people of Earth were only returned to their normal human selfs when Grandfather was defeated and decommissioned by Numbuh 0 and Sector V.
Age-o-tonic Birthday Suits were modified by Numbuh 2 to prevent zombification after the epidemic began, but were only partially complete by the time Numbuh 2 himself was turned into one. When Numbuh 1 put his team into the suits near the end of the film, their bodies are only partially covered. The other parts are still zombified and still evil. With Grandfather decommissioned, the world turns back to normal as the Senior Citi-Zombies transform back into their normal, harmless human state.
Victims who became Senior Citi-zombies[]
Note
- All members of Sector FL
- All members of Sector R
- Bag-Headed Cashier
- Big Brother
- Bradley
- Candy Pirates
- Chester
- Chewy and Gooey
- Common Cold
- Crazy Old Cat Lady
- Crazy Old Cat Lady's cats
- Cree Lincoln
- Dumb John Silver
- Gramma Stuffum
- Gramma Stuffum's Food Army
- Great Puttinski
- Hungry Men
- Ice Cream Men
- KND High Command
- Knightbrace
- Mega Mom & Destructo Dad
- Mr. Boss
- Mr. Fizz
- Mr. Mogul
- Mr. Wink and Mr. Fibb
- Mrs. Goodwall
- Numbuh 1-Love
- Numbuh 2
- Numbuh 3
- Numbuh 4
- Numbuh 5
- Numbuh 34
- Numbuh 35
- Numbuh 44
- Numbuh 60
- Numbuh 78
- Numbuh 86
- Numbuh 99
- Numbuh 101
- Numbuh 191
- Numbuh 202
- Numbuh 362
- Nurse Jumbo
- Operative D
- Parent Teacher Organization Of Eradicating Youngsters
- Professor Bob
- Robin Food
- Sector V's hamsters
- Simon
- Stickybeard
- Teen Ninjas
- Teen Tornado
- The Iguana
- The Proper Patrol
- The rest of the Decommissioning Squad
- Toiletnator
- Tommy Gilligan
- Unnamed Janitor
Victims not seen as Senior Citi-zombies[]
Note: While implied to have been transformed into Senior Citi-zombies, the following aren't seen as such in Operation: Z.E.R.O.
- Anna Worthington
- Betty Gilligan
- Boys Next Door
- Bethany
- Cadets Next Door Operatives
- Count Spankulot
- Cuppa Joe
- Cheese Shogun Roquefort
- Dodgeball Wizard
- Eggbert Eggleston
- Ernest
- Genki Sanban
- Heinrich von Marzipan
- James Nixon McGarfield
- Jerry Rassic
- Julie
- Joey Beetles
- Joe Balooka
- Kani Sanban
- King Sandy
- KND Nightly News
- Laura Limpin
- Lizzie Devine
- Madam Margaret
- Mr. B.
- Mr. Frybingle
- Mr. P
- Mr. Physically Fitastic
- Mr. Q
- Mrs. Thompson
- Mr. W
- Mr. Washer
- Mrs. Uno
- Meg
- Muffy Jenkins
- Mushi Sanban
- Marty
- Nurse Claiborne
- Numbuh 6
- Numbuh 8
- Numbuh 9
- Numbuh 10
- Numbuh 11-Teen
- Numbuh 12
- Numbuh 13
- Numbuh 14
- Numbuh 15
- Numbuh 16
- Numbuh 17
- Numbuh 18
- Numbuh 19
- Numbuh 19th Century
- Numbuh 20
- Numbuh 22
- Numbuh 23
- Numbuh 24
- Numbuh 28
- Numbuh 30C
- Numbuh 36
- Numbuh 40 to Life
- Numbuh 41
- Numbuh 42
- Numbuh 43
- Numbuh 45
- Numbuh 46
- Numbuh 47
- Numbuh 48
- Numbuh 49
- Numbuh 58
- Numbuh 59
- Numbuh 63
- Numbuh 65.3
- Numbuh 66
- Numbuh 67
- Numbuh 68
- Numbuh 69
- Numbuh 70
- Numbuh 71
- Numbuh 71.562
- Numbuh 73
- Numbuh 74.239
- Numbuh 83
- Numbuh 84
- Numbuh 85
- Numbuh 87
- Numbuh 88
- Numbuh 92
- Numbuh 93
- Numbuh 100
- Numbuh 112
- Numbuh 142
- Numbuh 143
- Numbuh 149
- Numbuh 161
- Numbuh 191
- Numbuh 222
- Numbuh 222.2
- Numbuh 256
- Numbuh 256k
- Numbuh 275
- Numbuh 300cc
- Numbuh 311
- Numbuh 3400
- Numbuh 342
- Numbuh 363
- Numbuh 50 Million B.C.
- Numbuh 5 Million B.C.
- Numbuh 411
- Numbuh 437
- Numbuh 512
- Numbuh 513
- Numbuh 515
- Numbuh 555
- Numbuh 619
- Numbuh 686
- Numbuh 700
- Numbuh 786
- Numbuh 888
- Numbuh 900
- Numbuh 911
- Numbuh 1086
- Numbuh 1313
- Numbuh 1350
- Numbuh 5,000
- Numbuh 20,000
- Numbuh 3-2-1
- Numbuh Bajillion and One
- Numbuh Between 1 and 20
- Numbuh Change for a 20
- Numbuh D20
- Numbuh Eleventy Billion
- Numbuh Ezekiel
- Numbuh F-14
- Numbuh Half Past 12
- Numbuh Hang 10
- Numbuh Rebecca
- Numbuh VO5
- Numbuh 2x4
- Numbuh 8 by 10
- Numbuh Infinity
- Numbuh Ouch
- Numbuhless
- Oren Kaunfer
- Pauley Marcus
- Potty Mouth
- Pretzel Operative
- Professor XXXL
- Principal Smelling
- Six-Gum Gang
- Senator Safely
- Senior Citizen Squad
- Soccer Mom
- Sydney Beetles
- Willard Wallace
- Wilson Woodrow
- Teen Ninjas
- The Kid
- Teenage Spy
- Valerie
- Vin Moosk
Trivia[]
- Toiletnator was the first to be zombified and was slowly transformed compared to other people. This might be because Grandfather was holding him by the toilet lid instead of his body.
- Numbuh 5 was the first kid operative to have been infected.
- None of the moonbase exclusive operatives are seen zombified, implying they were able to fight the zombies off with more success than the other operatives.
- Though Numbuh 362 and Numbuh 60 were in the Moonbase when they transformed back into their regular humans, they did not attack Numbuh 1 when he attempted to send the moon base into Grandfather.
- Several operatives are seen being attacked by the zombies, and are implied to have been Grandfathered. Notable examples consist of Numbuh 35, Numbuh 23, and Operative D.
- Numbuh 2 was the last one to be infected in his sector and possibly the entire KND.
- Monty Uno (Numbuh 0) is the only operative who has been hit with the zombification process, and not been zombified. This is due to the fact the Book of KND was on him at the time and he is Grandfather's son.
- Numbuh 1 is the only member of his team and only official KND operative who is not to be zombified. Furthermore, he is the only operative outside of Recommissioned operative like Numbuh 0 and Sector Z (Numbuhs 0.1 ~ 0.5) to engage the Rest of the Senior Citi-zombified Sector V in hand to hand combat and not be zombified. However, a design of his zombie form is used in Outnumbuh'd, in the game over screen.
- Much like Numbuh 1, Monty would've also had a citizombie form, but it never appeared in the movie.
- Numbuh 3's eyes were not yellow and blank while in the closet with Numbuh 4.
- Numbuh 4's shrieks of horror during his transformation just managed to slip past Numbuh 1 as he walks past the treehouse.
- It appears that the sector's treehouses only turn into tapioca factories when all KND member accompanying it are transformed except Sector V's and the Moonbase.
- Sector V was the only sector who resisted some of the transformation due to the birthday suits: Numbuh 2 (half of his body; his legs are still zombified and have a mind of their own as his legs kept kicking Numbuh 1) Numbuh 3 (her hands and hair), Numbuh 4 (his hands), Numbuh 5 (her face, mouth, and hair.)
- Cree Lincoln is the first and only Teen Ninja to shown being infected by senior citi-zombification.
- Citi-zombie designs for Numbuh 83 and Numbuh 84 were made, but never appeared in the movie.
- Despite making physical contact, Numbuh 1 didn’t turn into a zombie, presumably due to being Grandfather's grandson.
- The term senior citi is technically short for senior citizen.