However, after meeting Danny, the two quickly become friends. Danny, Sam, and Tucker do their best to help Wulf, eventually freeing him from the shock collar Walker placed on him. In return, he helps Danny stop Walker, risking his own freedom.
Wulf later appears in "Claw of the Wild". He manages to escape Walker's jail again by creating a ghost portal, but accidentally leaves it open, allowing various ghost creatures to escape into the summer camp where Danny and his friends are staying. Walker realizes this, and abducts the campers - including Tucker - to lure Wulf and Danny back. Danny, Sam, and Wulf manage to take out Walker's goons and free the campers. Danny then releases Wulf into the woods.
Wulf's final appearance is in the series finale, "Phantom Planet". He is one of Danny's many Ghost Zone allies who help to power the machine to save the Earth from the Disasteroid by turning it intangible.
Wulf resembles a large, muscular werewolf or anthropomorphic wolf, with large saber teeth. Wulf wears a worn green sweatshirt with a hood that he usually keeps down, and tattered green pants.
Despite his imprisonment by Walker, he’s like any other wolf, he is very sociable and enjoys the company of friends. As Sam describes him, he is ferocious but not too bright. He is loyal to his friends and will protect them from any danger.
- Intangibility, Invisibility, Flight: Standard ghost power.
- Superhuman Physical Abilities: Standard ghost attribute. Wolf is extremely fast and strong to take on hit from Walker and his men. He also durable enough to withstand hits.
- Healing Factor: Though he was wounded in "Claw of the Wild," he was capable of healing faster than a normal human being.
- Enhanced Senses: Wulf's animalistic sense of smell and hearing are as keen as a wolf's, enabling him to track his prey or his lost companions.
- Claws: Wulf has razor-sharp retractable claws from his fingers that can break even ghost shields, tear open portals to the Ghost Zone, tear ghosts from human bodies they are possessing and more.
The form of Esperanto that Wulf speaks is not in any way grammatically correct, and is in fact in almost all of his lines a direct word for word substitution from English equivalent words. For instance, The quote of him saying "Li estas al meti via amiko ena maliberejo!" is trying to say "He is going to put your friend in prison!" However, this is impossible to parse per Esperanto grammar, as it treating the prepositing 'al' as the infinitive particle, and neglects to place 'via amiko' and 'maliberejo' in the accusative case. A possible correct form is "Li tuj enigos vian amikon en la malliberejon!"
- 115. "Public Enemies"
- Wulf: Libera? (Free?)
- Danny: Jes, libera, mio amiko. (Yes, free, my friend.)
- Wulf: Amiko! (Friend!) [Wulf licks Danny affectionately.]
- Tucker: So, what's Walker up to? Kio estas Walker?
- Wulf: Li estas al meti via amiko ena maliberejo! (He's going to put your friend in prison!)
- It's possible that Wulf is based somewhat on the Marvel Comics superhero Wolverine, as they have several similar abilities including retractable claws and a healing factor.
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