Zarak

Lord Zarak is a Nebulan leader in the merican Transformers G1 continuity and a Decepticon robot in the Japanese continuity.

Marvel Comics
Lord Zarak is depicted as a politician, who is blackmailed and manipulated by the Decepticon base Scorponok into working for him and binary bonding with him. In this continuity, Zarak is shown to have a family as well.

American Cartoon
In the three part Rebirth series, Lord Zarak is a vile dictator, the leader of the Hive, a group of telekinetics who have enslaved the population of Nebulos. Zarak is the eleventh member, and the only one to retain his organic body. Zarak is shown to be pure evil with no remorse for his actions, and considers the Transformers nothing more than more machines for him to control. While the hive cannot control Transformers as they would normal machines, Zarak nonetheless uses his machines to capture and bully the Decepticons into supplying Headmaster and Targetmaster forms for the ten bodiless Hive members.

Zarak later rebuilt a Hive underground facility into the giant Headmaster body Scorponok, with a special suit that allowed him sole control over Scorponok. In the end, Zara/Scorponokk lost to Fortress Maximus and the Decepticons and Hive fled Nebulos. The series ended but hints of a conflict between Zarak and Galvatron for leadership were present.

Zarak talks in an almost monotone voice, showing little emotion and never anger. While he retains his body, he is never shown to walk without his Headmaster suit and may be a papaplegic. One eye is also drawn closed, he may be blind in it or missing it.

Animation errors also abound in these episodes, as Zarak, both with and without his suit, is drawn as both human and Transformer sized, which fluctuates between scenes.

Headmasters
Zarak is a Decepticon who left Cybertron long ago with the rest of the Headmaster robots. Unlike the rest of them, his body is fully Transformer sized, not human sized like the rest. Zarak is notable for his destruction of Cybertron, and placed himself as Decepticon leader while Galvatron was believed dead. Scorponok is his floating fortress and giant Headmaster body.