Simsill

Simsill is a centipede-like alien who befriended Matt Holt during his time in Galra captivity.

Appearance
Simsill is described as looking like an "enormous centipede," with two thin, rod-like arms, six legs, and a pair of mandibles set low on a flat, triangular head. They have a greenish carapace and six black eyes, the leftmost two of which are cloudy and scarred by an old wound. Despite their comparison to an insect, they have an almost humanoid torso and seem to let off body heat.

They speak in a series of clicks and hisses, but the universal translator has no problem translating their words to English for Matt.

In their robeast form, Simsill's anatomy is unchanged, but they now stand multiple stories high, and are "taller than the wreckage of the warship." They have a robotic skeleton layered with organic parts, and their arms end in guns. Their scar is mimicked by a streak of garish yellow paint over their eyes.

Biography
Simsill's past is unknown, since they are only portrayed in Matt's flashbacks, but they evidently spent a much longer time in Galra captivity than Matt did. Eventually, they were transferred to Haggar's robeast project, where they were successfully corrupted.

In the chapter of their debut, their robeast form crashes on Arus while Pidge and Matt are investigating the remains of Sendak's ship. They attack Matt when they notice him entering the Red Lion, and continue firing on the Lions until the Paladins are able to form a plan and take them down.

Personality
Simsill is described as acting kind and gentle towards Matt while he is exhausted from his time in the Pit, almost motherly in their actions. They feel pity for new prisoners and are not so fearful of their captors that they are unwilling to help out, unlike the other prisoners from their cell, and even take physical punishment meant for Matt. This personality is absent in their robeast form.

Abilities
Simsill's natural abilities are unknown, though they do display enough strength to easily carry Matt.

As a robeast, Simsill has laser canons on their arms, tail, and in their mouth, as well as thick-plated armor that renders normal Lion lasers fairly useless.