Antoine

Antoine is a cat found in Zeiss, usually inside the Zeiss Central Factory. He doesn't have an owner but it’s considered the factory’s cat, and tends to be cared for by anyone who feels the urge.

In the quest Smoker's Revolt, Antoine is an eyewitness to the theft of cigarette from the clinic's cabinet, and Estelle, Joshua, and Tita give him some fresh milk so he can follow them and aid them in finding the culprit. Thanks to Antoine, the group learns that Factory Chief Murdock was the one responsible for stealing the cigarettes.

When Estelle, Joshua, Tita, and Agate board the Leibnitz to sneak into Leiston Fortress, Maintenance Chief Gustav takes Antoine with him. Gustav puts Antoine inside one of the containers sent to the fortress, which upon inspection triggers the army's bio-sensor and makes them think a human is in the container. After being found out, he runs back into the Leibnitz.

Later, before Estelle and Joshua leave for Grancel, Antoine goes to the Landing Port to say goodbye to them.

In the quest Parts Search, Estelle learns that Erick was playing with Antoine in the Lab, and that's why engineering parts flew out of his pocket.

Antoine is brought aboard the Arseille with other ZCF engineers as they work with Prof. Russell on a solution to the Gospel problem.

Antoine is found later in Krone Pass with Ray, both walking home from Bose since during the Orbal Shutdown Phenomenon no airship travel was possible.

Antoine is on the Leibnitz when it goes to Valleria Lake to retrieve the Recluse Cube from its depths.

Quotes
Most lines Antoine says throughout the games can be translated by using Kitty-Talk for Dummies. They are as follows:

Sky FC={| class="article-table" style="width:100%" ! style="width:40%" |Location ! style="width:20%" |Expression ! style="width:40%" |Translation ! ! style="width:40%" |Location ! style="width:20%" |Expression ! style="width:40%" |Translation ! ! style="width:40%" |Location ! style="width:20%" |Expression ! style="width:40%" |Translation !
 * Upon arriving in Zeiss (Landing Port)
 * Nyao?
 * What’s wrong?
 * When Estelle goes to meet Prof. Russell (Design Room)
 * rowspan="2" |Nya-o.
 * rowspan="2" |So, we meet again...fleshy thing.
 * After the Black Orbment experiment (Clinic)
 * At the start of the quest Smoker's Revolt (Clinic)
 * Nyago.
 * Hello.
 * After drinking milk from the bracers (Clinic)
 * Nyaao.
 * This is it.
 * When asked if Supervisor Travis is the one that stole the cigarettes (Operations)
 * rowspan="2" |...Nyao?
 * rowspan="2" |What’s wrong?
 * When asked if Hugo is the one that stole the cigarettes (1F)
 * When Antoine walks past Murdock’s office (Office)
 * Nyayago; Nyayago!
 * Hold up. (When urging to be cautious)
 * When talking with Murdock (Office)
 * Nyaao; Nyaao; NYAAO!
 * This is it.
 * When checking the green door in Murdock’s office (Office)
 * Nyaa~go.
 * This way. (When guiding)
 * After Estelle asks if the cigarette is behind the green door (Office)
 * Nya~o.
 * Yes, that’s exactly right. (Strong affirmation)
 * Before going to Elmo Village (Clinic)
 * Nyayayaa~.
 * (An expression of delight)
 * During the attack on the factory (Factory Block)
 * NIIYAAO!
 * After the attack (Workshop)
 * Nyaa...
 * These nails are bothering me. (When agitated)
 * After returning from Carnelia Tower (Lab)
 * Nya-o...
 * rowspan="2" |So, we meet again...fleshy thing.
 * While Agate is at the clinic (Landing Port)
 * Nya-o.
 * On the way to Leiston Fortress (Leibnitz)
 * Nyaa!
 * These nails are bothering me. (When agitated)
 * When found out by the Royal Army (Leiston Fortress)
 * Nya-o…; Nyaon?
 * So, we meet again...fleshy thing; Who are you?
 * When Cid asks him if he would like to live at the fortress
 * *Fumyaaa…*; ...Nyaon.
 * (A yawn); I’m tired.
 * Saying goodbye to Estelle and Joshua (Landing Port)
 * Nya-go; Nyao-n…; Myaon?; Mya~uun.
 * It's been a while. How have you been?; Yes, that's right.; What did you just say, o' hairless one? (An expression of reproach); You are welcome, squishy pink thing.
 * }
 * -|Sky SC={| class="article-table" style="width:100%"
 * While Agate is at the clinic (Landing Port)
 * Nya-o.
 * On the way to Leiston Fortress (Leibnitz)
 * Nyaa!
 * These nails are bothering me. (When agitated)
 * When found out by the Royal Army (Leiston Fortress)
 * Nya-o…; Nyaon?
 * So, we meet again...fleshy thing; Who are you?
 * When Cid asks him if he would like to live at the fortress
 * *Fumyaaa…*; ...Nyaon.
 * (A yawn); I’m tired.
 * Saying goodbye to Estelle and Joshua (Landing Port)
 * Nya-go; Nyao-n…; Myaon?; Mya~uun.
 * It's been a while. How have you been?; Yes, that's right.; What did you just say, o' hairless one? (An expression of reproach); You are welcome, squishy pink thing.
 * }
 * -|Sky SC={| class="article-table" style="width:100%"
 * Saying goodbye to Estelle and Joshua (Landing Port)
 * Nya-go; Nyao-n…; Myaon?; Mya~uun.
 * It's been a while. How have you been?; Yes, that's right.; What did you just say, o' hairless one? (An expression of reproach); You are welcome, squishy pink thing.
 * }
 * -|Sky SC={| class="article-table" style="width:100%"
 * Upon arriving in Zeiss (ZCF - Lab)
 * Nyao?
 * What’s wrong?
 * After returning from Sanktheim Gate (ZCF - Clinic)
 * Nya-o.
 * So, we meet again...fleshy thing.
 * On the Arseille (Arseille - Workshop)
 * Nya-go.
 * It's been a while. How have you been?
 * After Joshua asks if someone brought him aboard (Arseille - Workshop)
 * Nyao?
 * What’s wrong?
 * When Estelle says he’s her favorite kitty (Arseille - Workshop)
 * Nya-o.
 * So, we meet again...fleshy thing.
 * After returning from Carnelia Tower (Arseille - Aftdeck)
 * Nyao?; Nyayayaa~!
 * So, we meet again...fleshy thing.; (An expression of delight)
 * At Krone Pass
 * Nya~on.
 * Goodbye.
 * When Ray tells Estelle he’s glad he’s not travelling alone (Krone Pass)
 * Nya-o.
 * So, we meet again...fleshy thing.
 * }
 * -|Sky 3rd={| class="article-table" style="width:100%"
 * Nya~on.
 * Goodbye.
 * When Ray tells Estelle he’s glad he’s not travelling alone (Krone Pass)
 * Nya-o.
 * So, we meet again...fleshy thing.
 * }
 * -|Sky 3rd={| class="article-table" style="width:100%"
 * -|Sky 3rd={| class="article-table" style="width:100%"
 * When Gustav says he's surprised the artifact at the bottom of Valleria Lake is as small as Antoine (Leibnitz)
 * Nyaon?
 * Who are you?
 * When Agate Crosner walks through the factory to find Tita and Erika Russell
 * Nyaon?
 * Who are you?
 * }
 * Who are you?
 * }