Freki and Geri

Freki and Geri are twin, pale-white wolf phantoms that are the pets and servants of the demon warrior known as Bolverk. They are the subbosses and minor villains for Mission 11 and Mission 16 of Dante's scenario in Devil May Cry 2.

Freki and Geri also may be are reincarnated figures of warriors whom Bolverk fought alongside

Devil May Cry 2
After Dante first defeats the demon wolfs Freki & Geri before entering the streets of Uroboros City, they return to their master Bolverk, waiting atop a skyscraper.

Bolverk later reappears in the underground temple ruins, where he challenges Dante to a duel. Dante chases him off and continues through the ruins, eventually meeting with Lucia.

Bolverk along with Freki and Gerilater reappears as Dante climbs Arius's tower, and this time Dante destroys them all. It is not made clear if Bolverk and his wolfs serves Arius or not.

Trivia

 * Freki and Geri are two wolves that acted as companions to Odin under human alias Bolverk.