Robobot

Robobot is an introspective and soft-spoken robot and a member of the League of Freedom. He is seen as the brains of the group.

History
Initially called "Robobot", he renames himself "Jewbot" after finding his creator was Martha Goldstein (which may be Jewish last name) lead him to find a Rabbi who guided him during his path to self discovery.

However in season 2 is revealed by Martha, Robobot’s creator, that she was only using her married surname, and when she explains that she believes in Scientology, Jewbot became Robobot again.

Immortality
As a robot, Robobot has no need for food, water, oxygen or sleep. He was able to survive decapitation and still function as only a head.

Genius Intellect
As a robot with connections to the internet, Robobot has access to it giving him expert knowledge of math, science, biology, history, law, religion, culture, among others.

Due to intelligent, he serves as the League accountant and doctor.

Super Strength
Robobot (or Jewbot in the 1st Season) is extremely strong being able to rip off his own arm without any effort.

Enhanced Durability
Robobots armor is incredibly durable. He was have to endure repeated blasts from Subtopian energy weapons and keep on fighting.

Tool Appendages
Robobot has the ability to transform his appendages into any tool.

Holograms
Robobot can generate holographic images of himself or others, even able to speak.

Decapitation
A strong blow can knock Robobot's head off of his body.

Power Depletion
Robobots body requires power to function. If he does no recharge and runs out of power, he will shut down.

Data Conection
If Robobor is disconected from his Cloud Based servers he will loose 95% of his proscessing power.

Trivia

 * Robobot is a fan of Robin Williams, as he used quotes from of his famous movies, Good Will Hunting and The Dead Poet Society in "Puss in Books"