Gilbert is a 16 year old Gallaxharian with dark skin, black hair and brown eyes. He wears a light pink tight zentai suit, pale pink wristbands with a pink star on both, pink shirt with a pale pink star, pink shorts, pale pink cap sleeves and a pale pink belt with a bright pink star in it and pink boots with a pink star on both. His magic powers has pink stars in it. He is the friends and his signature color is pink.
In the film, Gilbert is very smart, technical, and the brains in Gallaxhar, and is the middle of the Galactic Boys. He also has a crush on Ginger.