Rook Blonko

Rook Blonko is Ben Tennyson's new partner in Ben 10: Omniverse. He is a Revonnahgander from the planet Revonnah.

Appearance
Rook is a violet-skinned alien with a blue and black armor with white face paint and black stripes over his face, and has pointed elfin ears. He carries the Proto-Tool on his shoulder and wears a bluish Proto-Tech Armor.

Powers and Abilities
Rook uses various Plumber weapons and technology, such as the Proto-Tool to battle. It has also been shown that he is Nimble and has acrobatic skills. He also has very durable armor called Proto-Tech Armor.

He is also a master strategist in battle and tactics.

Rook has been shown to be an incredible marksman many times, an example is in A Jolt From The Past he was able to shoot Fistrick's tank from far away on a crane.

Personality
When Rook first met Ben in The More Things Change: Part 1, he was respectful of Ben, mentioning that he heard all about him in the Plumbers Academy. Unlike Ben, Rook is more stoic and prefers to think before acting. He seems to treat Ben more like a superior instead of a friend/partner as he usually addresses him as 'sir'. While he is very intelligent, his lack of experience can make him somewhat naive and immune to most of Ben's jokes. Also, he seems to dislike chili fries. He sometimes is irritated by ben's non professional and cocky behaviour during cases as in Hot Stretch.

Ben 10: Omniverse
He is a co-op partner in the game who travels in time to help both Bens.

Trivia

 * Tramm Wigzell (executive producer of Omniverse) considers Ben to be an "all experience, but no training" type of Plumber while he considers Rook to be an "all training, but no experience" type of Plumber. He mentions that their partnership will be beneficial in covering their weaknesses.
 * Rook thinks Alien X is something made up by fans of Ben on the extranet. That was the case until So Long, and Thanks for All the Smoothies?. However, Rook doesn't remember this, because Alien X didn't "save" the universe because it was too late; rather, Alien X made an exact copy of everything in the universe before the destruction of the universe.
 * It is confirmed by Derrick that Rook has siblings.
 * He has a deep grudge against the Vreedle Brothers because they destroyed the Plumbers' Academy and he had to take his final exam in a trailer on an asteroid.