Katz Kobayashi Browse icon








Genetic Type
  • Newtype
  • 120 cm
    3.937 ft
    47.244 in
  • 149 cm
    4.888 ft
    58.661 in
  • 30 kg
    66.139 lb
  • 45 kg
    99.208 lb
Hair Color
  • Brown
Eye Color
  • Brown
Birth Date
  • February 21, 0088 (U.C.)
  • Killed in Action
  • Male
Love Interests
Mobile Weapons
Vessels Crewed


One Year War

Born Katz Howan, he is one of three orphans brought onto the White Base during the One Year War. While aboard the ship, Letz, Katz, and Kikka became a combination of mascots and troublemakers for the ship, and were involved in several incidents, including Ramba Ral's last ditch attack on the ship, as well as Char's infiltration of Jaburo, when they helped to dispose of the bombs. The latter incident lead to their being allowed to stay on the ship, even when the White Base left Earth to return to space for the final offensives at Solomon and A Baoa Qu. After the Battle of A Baoa Qu, the three kids showed their Newtype abilities, when they reached out to allow Amuro to find the lifeboat on which the White Base crew had escaped the ship.

Gryps Conflict

Katz 0087

Katz in AEUG uniform. 0087

Katz is one of the trio of war orphans who were adopted after the One Year War by White Base crew members Hayato Kobayashi and Fraw Bow. Katz now feels he's old enough to follow in the footsteps of his childhood heroes, and after helping Amuro escape Federation surveillance and join the resistance fighters, Katz make his way into space to fight alongside the AEUG.[1][2] Like his foster father Hayato, Katz is impulsive and reckless, not to mention dangerously naive.

Katz learned how to pilot Mobile Suits while helping out at his foster father's museum, piloting Zeon mobile suits from the One Year War. After joining with the Karaba forces, Katz attempts to pilot the RX-178 Gundam Mk-II only to damage the suit and cause an enemy mobile suit to retreat.[3]

After going into space he joins with the AEUG forces and learns how to pilot a MSA-003 Nemo before taking over as the pilot of the FXA-05D G-Defenser. Teaming up with Emma Sheen, Katz supports her with the G-Defenser.

As a crew member of the Argama he repeatedly meets Sarah Zabiarov and holds a mutual attraction with the young Titan's officer. During the final battle between the AEUG, Titan and Axis fleet Katz is killed when the G-Defenser is shot down by Yazan Gable and crashes into a wrecked battleship.

In the final battle, Katz's spirit appears to assist Kamille.

In A New Translation, Katz evaded Yazan's shots, but crashes into a meteorite. His spirit did not appear in the 3rd movie.

First Neo Zeon War

He briefly appears as one of the spirits protecting Judau Ashta from Haman Karn.

Notes and Trivia

  • The pronunciation of Katz's first name in the English dub of Mobile Suit Zeta Gundam is somewhat problematic – the real-world pronunciation goes "k AE t s" (identical to the words "cats"), but in the dub, the characters pronounce the name as "k ɒt s" ("kahts"), with a British inflection.



  1. Mobile Suit Zeta Gundam Episode 13, Shuttle Launch
  2. Mobile Suit Zeta Gundam Episode 14, Amuro Flies Again
  3. Mobile Suit Zeta Gundam Episode 15, Katz's Sortie