Robotboy

Appearance:

Robotboy is a shiny light blue/gray robot with a round-shaped head, cyan eyes (which turn red during his super-activation sequence), his ears are metallic blue, his hands are blue with darker fingers, and his tube-shaped feet are blue and have holes below them where the fire comes to fly. He has a full set of bright white teeth and the inside of his mouth is blue including his tongue.

In Tween for a Day, Robotboy's human disguise shows him having dark blue hair, one tooth, a shirt and gray pants.

Personality:

Robotboy is naive, and is very easily led (most often by Gus, and into certain negative situations). However, when things come down to the wire, he's often the first to react and has a fair understanding of his surroundings and circumstances.

Robotboy is overprotective of Tommy and his friends (and Robotgirl during their brief encounter) On more than one occasion, he's been openly willing to do anything to keep each of them safe. If Tommy orders him to stop though, Robotboy will stop almost instantly. Robotboy's over-protectiveness is more blatant in the beginning episodes of the first season, then again near the end of the season. This cycles throughout the first three seasons that were aired.

He is shown not to like dishonesty, and has a fair bit of respect for those around him (except for Gus). He appears to like having fun with Tommy and on occasion Lola.

History:

Robotboy was created by Professor Moshimo as a force to protect the world from threats after Protoboy failed, as he was captured by Kamikazi and reprogrammed. But because he was in danger he was then passed to Tommy to learn more about humanity, which is the premise of the show.

Trivia:

Along with his best friend Tommy, Robotboy appeared in every episode of the series.
Robotboy refers to himself as "third person" in most episodes, however it could be due to his lack of grammar. However, there are some moments where he referred to himself as "first person", albeit with his lack of grammar.
Robotboy was told what jealousy means twice (The first time was in Dog-Ra, and the second time was in Valentine's Day).
Robotboy is never seen speaking in his Superactivated form, except in the French dubs of "Double Tommy" and "Robot Girl".
There are exactly 7 episodes where Robotboy does not say or speak a single word, the episodes that include are: "War and Pieces", "Constantine Rising", "Kurt's Father", "The Manchurian Robot", "Tummy Trouble", "Mancation", and "Momma's Boy".
Robotboy is unable to cry, until the events of "Crying Time" and while it is the only episode where he cries he almost cried with joy in the episode "Hair-A-Parent".
Throughout the entire show, Robotboy has Superactivated approximately 90 times
In Tummy Trouble and The Legend of Brainy Yak, he along with Tommy Turnbull is not a main character.
The first words we hear from Robotboy are: "Evil, Robotboy destroy!" Referring that he wanted to attack the Dog-Ra, being disguised as a little puppy, from the premiere episode "Dog-Ra".
The very last words we get to hear from him in the show would be: "No, get back!" When he tried to stop Robotgirl from being turned into titanium in the factory in "The Return of Robotgirl".
Two of Robotboy's favorite TV shows are The Human Fist Show and Mortal Kombot. He also enjoys shows that have robots, whether they are sci-fi ones or other fighting robots, such as the "Robo-Battle" show he and Tommy wanted to watch in "Wrestling With Gus".
There was a popular belief that Robotboy was voiced by Tara Charendoff Strong. However, this is a mere rumor and thus not true. The show's English dub only used England-based voice actors and Strong is not based in England.

Robotboy is a robot created by Professor Moshimo. He was designed to resemble a real child. Robotboy has three activation modes: off, where he resembles a doll; normal, where he is approximately the height of Tommy Turnbull; and super activation, where he towers over most adults and boasts a multitude of machine guns and rockets.

Moshimo intended to enroll him in a robot fighting television show, but before he could do so, his old rival, Dr. Kamikazi, learned of Robotboy and intended to steal him for world domination. Knowing the evil he could do with Robotboy, Moshimo sent him to his pen pal and biggest fan, Tommy Turnbull. During the introduction, it is stated that Robotboy was given to Tommy to learn how to be more like a human child, but it is not specified how long he had been activated or why Tommy was his chosen guardian (we can assume that Moshimo's reason is that Tommy is his number one fan).

Robotboy stands approximately 30 cm (about 1 ft) tall in Off mode, 45 cm (1.5 ft) in On mode, and 182.5 cm (6 ft) in Super On mode. However, if we count his ears, SA Robotboy would be 2.1 meters tall, far towering over any adult in the series, even Kurt's father.