Ape Escape Wiki
Ape Escape Wiki
Ape Escape Spike Render Ape Escape 2 Jimmy 2 Kei Render Yumi Ape Escape 2 Professor Casi Ape Escape 2 Natalie Helga Aki
Ape Escape 3 CameraMonkey Ape Escape Jake Specter Render AE2 Doctor Tomoki Blue Monkey Yellow Monkey Pink Monkey
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Casi (Charu)
Name(s) Japan チャル (Charu)
America Casi
Europe Charu
Gender Female
Allies Professor, Natalie, Spike, Jake, Helga, Pipotron G
Anime Only: Kuuta, Pipotrons
Enemies Specter, Pipo Monkeys, Mystery Man, Pipotrons, Dark Jake, Dark Specter Virus Casi, Grid Core, Alien Slimes, Blob Core
Anime Only: Pipotron J, Pipotron Meta, Pipotron Krack, The Freaky Monkey Five
Family Professor (Creator)
Height Unknown
Weight Unknown
Age Unknown
Appears in Ape Escape NTSC-U
Saru Get You CoroCoro Comics
Ape Escape 2001
Ape Escape 2 USA
Ape Escape Pumped & Primed
Ape Escape On The Loose logo gamescanner
Saru Get You On Air
Ape Escape Million Monkeys Logo1
Saru Get You ~On Air~ 2nd Logo
Voice actor(s) Japan Tomoko Kawakami (AE1, P&P, MM, OTL) Rumi Shishido (~On Air~}
America Peggy Small (AE1) Amanda Winn Lee (AE P&P) Jennifer Hale (OTL)
Europe Maria Darling (OTL, PSASBR)

Casi, known in Japan and some US & UK games as Charu (チャル) is an artificial intelligence program that takes the form of a human girl. She appears to help out whenever she can or assists the Professor.


Casi is a pale-skinned girl originally with big violet eyes that became green over time, and long flowing green hair usually worn straight down or in a ponytail.

In Ape Escape and Ape Escape: On the Loose, Casi wore a black spandex outfit with white cuffs below her shoulder and around her neck, and the Professor's insignia on her chest. She also wore white socks with red, white, and black shoes, two red bracelets, and a pair of red and white circled ear pieces.

In Ape Escape: Pumped & Primed, she wears the same outfit, but now has a spider motif.

In Ape Escape: Million Monkeys, she wears a sleeveless white shirt with short blue shorts.


Casi is a helpful girl who appears to behave formally with others. She is very nice but a quiet girl. She is a loyal assistant to the Professor and not quite as pushy or hot-headed as Natalie.


Working at the Professor's lab, she helps Spike travel through time by giving him instructions on how many apes he has to catch. She also displays the level titles and how many monkeys are in these stages.

When Natalie and the Professor were kidnapped by Specter and his monkeys, Casi became Spike's temporary mentor until they were rescued.

Casi fulfills the same role as the previous game by telling how many Monkeys there are in a level.

Casi joined the Hi-Tech Tournament along with Spike, Natalie, and the Professor. This in turn made her a playable character. After the final battle they had with the Grid Core, Casi helped everyone escape from the world the Grid Core had trapped them in. They all arrived back in the normal virtual world safe and sound.

In gameplay, she can jump up to 3 times.

Casi appears in Million Monkeys with a physical body, but also Virus-variations of herself used by the enemy.

Other Appearances[]

PlayStation All-Stars Battle Royale[]

Casi makes an appearance in PlayStation All-Stars Battle Royale. In Spike's story mode, she alerts him and the Professor about an otherworldly invasion. She can also be seen in the Time Station level.


See Casi/Gallery.


Ape Escape Franchise
Main Games Ape Escape ( On the Loose )  · Ape Escape 2  · Ape Escape 3
Spin-offs Ape Escape 2001  · Ape Escape Million Monkeys  · Saru Get You: Pipo Saru Racer  · Ape Escape SaruSaru Big Mission  · Ape Quest
Party games Ape Escape: Pumped & Primed  · EyeToy: Monkey Mania  · Ape Academy  · Ape Academy 2  · Ape Escape Move
Soundtracks Ape Escape Originape  · Ape Escape 3 Originape  · Ape Escape: Pumped & Primed ~Sound Tracks!!~
Other Media Anime  · Cartoon  · Shorts  · Comics  · Manga  · Cameos
Gameplay Chips  · Cookies  · Glitches  · Grid Core  · Peak Point Helmet  · Shirts  · Specter Coins
Minigames Galaxy Monkey  · Ski Kidz Racing  · Specter Boxing  · Ape Ping Pong  · Jake Attacks

Dance Monkey Dance  · Monkey Climber  · Monkey Soccer
Mesal Gear Solid  · Super Monkey Throw Stadium  · Ultim-ape Fighter!

Protagonists Spike  · Jimmy  · Kei  · Yumi  · Professor  · Casi  · Natalie  · Helga  · Aki  · Pipotchi  · Pipo Snake
Antagonists Specter (Dark Specter)  · Jake (Dark Jake) · Doctor Tomoki  · Monkeys  · Monkey Five ( Blue  · Pink  · Red  · White  · Yellow )  · Pipotrons (Pipotron J)  · Virus Casi
Enemies Ape Escape Enemies  · Ape Escape 2 Enemies  · Teleborgs
Gadgets Ape Vacuum  · Bananarang  · Banannerizer  · Dash Hoop  · Electro Magnet  · Magic Punch  · Monkey Radar  · R.C. Car  · Sky Flyer  · Slingback Shooter  · Smasher  · Stun Club  · Time Net  · Water Cannon  · Water Net
Vehicles Boat  · Pipobot  · Robot  · Snowmobile  · Sports Car  · Submarine  · Tank
ApeEscapeTemplate ApeEscapeOTLTemplate
Characters Casi  · Jake  · Natalie  · Professor  · Specter  · Spike
Gadgets Dash Hoop  · Magic Punch  · Monkey Radar  · R.C. Car  · Sky Flyer  · Slingback Shooter  · Stun Club  · Time Net  · Water Net
Levels (/ Apes/ Enemies)
Hub World
Time Station
Prehistoric Era/ The Lost Land Fossil Field  · Primordial Ooze  · Molten Lava
Cenozoic Era/ Mysterious Age Thick Jungle  · Dark Ruins  · Cryptic Relics
Dimension/Dimension X Stadium Attack
Primitive Age/Oceana Crabby beach  · Coral Cave  · Dexter's Island
Ice age/New Freezeland Snowy Mammoth  · Frosty Retreat  · Hot Springs
Dimension/Dimension X Gladiator Attack
Recent Past/Medieval Mayhem Sushi Temple  · Wabi Sabi Wall  · Crumbling Castle
Present-Day/Futurama City Park  · Specter's Factory  · TV Tower
Present-Day 2/Specter Land Monkey Madness
Dimension/Dimension X Peak Point Matrix