Blitzwolfer

Benwolf is the Codon Stream's DNA sample of a Loboan from Anur Transyl's moon, Luna Lobo.

thi is benwolf in the first series
Benwolf's appearance is based on a classic werewolf. He has grey fur and a long flowing mane and large bushy tail, with three sharp claws on each hand. The inside of his mouth is green.

In Ultimate Alien, Benwolf's mane and tail have turned black and the inside of his mouth has turned red.

Benwolf wears white pants with black markings that reach up his chest.

Benwolf wore the Omnitrix symbol on his stomach in the original series and wears the Ultimatrix symbol on his chest in Ultimate Alien.

Powers and Abilities
Benwolf has enhanced strength, supposedly being able to lift approximately 500 lbs. In addition to Benwolf's formidable claws, fangs and muscles, he can emit a strong and destructive green-colored glowing visible ultrasonic howl if the parts of his quadra-hinged muzzle are opened and a shout is released.

Weaknesses
Like most animals, Benwolf is colorblind so it is hard for him to distinguish anything but black and white.

Ben 10 and Ultimate Alien

 * Benwolf first appeared in Benwolf. After the Omnitrix was scratched by the Yenaldooshi, it got stuck between Active Mode and Capture Mode, making Ben turn into Benwolf slowly. Wes thought Ben was turning into a Yenaldooshi because he was bitten by it as Wildvine. However, after the Omnitrix symbol appeared on his stomach, they realized that they were dealing with an alien werewolf. Benwolf turned back after he dropped Max and Wes on a cliff.
 * Benwolf was re-unlocked in Ben 10,000 Returns by Ben 10,000.

Ben 10

 * Benwolf (first appearance)

Trivia

 * Kai is fond of Benwolf, however, Ben found out Kai only liked him for it, as she wanted to train/tame him.
 * Benwolf is part of the "Halloween Trio" (the others being Benmummy and Benvicktor).
 * Benwolf could be a pun of the name "Beowulf" an Anglo-Saxon mythological warrior.
 * In the original series, Ben only turns into Benwolf once; however, since Ben was transforming into him throughout the episode, Benwolf technically got the most screen time out of the "Halloween Trio".
 * Benwolf is the first alien, who's name has "Ben" in it, the second is Benmummy and the third is Benvicktor.
 * Benwolf is the second known alien whose home world is a moon, first is Upgrade.
 * Benwolf has a similar build and design to Biowulf from the Generator Rex series.
 * According to Eugene, there are currently no plans for Benwolf to appear, but it's possible he will.