Commandant Helios

Several monsters who joined up with Major Jambavan and serve him loyally.

Brigadier Chubouzu
Chubouzu was a surgeon and capable of making monsters grow with his grenades. He closely resembled his half-brother Choobo, but his armor was silver and his cape beige.

Chubouzu was the one to upgrade Jambavan, and a source of news about the fleet, presumably gained from his half-brother. He saved the nearly-dead Xumara when Tauza brought her to the Major.

Adjutant Officer/Spymaster Amorphous
Amorphous was a large, shapeshifting amoeba, and a hardworking soldier with a keen intrest in acting and impersonation. Out of all of Jambavan's followers, she was the most curious, and she loved her work.

Amorphous listened in on a conversation between Tauza and Lothor's other generals, reporting back to Jambavan when it was over. Later, she took on the Thinker's form to replace him.

Madam Yuki
A beautiful, buxom Oriental lady who dressed in white or cyan kimonos, Madam Yuki had the ability to control snow and transform into a giant snowbird--this usually when angry. She was cunning, utterly loyal and attracted to Jambavan.

She was at Jambavan's right hand when he negotiated with Tauza, and she was the first to attack the Thinker when they finally made their move.

Commandant Helios
A shrewd, merciless killer utterly devoted to Jambavan, whom he served as his main bodyguard. He was a thin man with a scraggly black beard, though when angered he transformed into a gigantic, smoking volcanic humanoid with a sunlike face. He could shoot fire, transform into a giant comet capable of dividing itself safely, and he could survive in a vacuum.

Helios aided Yuki and Tauza in killing the Thinker.

Trivia

 * Madam Yuki is based off the Yuki-Onna of Japanese mythology.