Mentor
Most Cainites are pretty well left to their own devices after release by their sires. Mentor reflects the continuing presence of an older vampire who takes an interest in the character, providing advice, aid and resources (depending on the mentor's interests). The mentor is not a magical cure for all the character's problems - a sufficiently determined fool convinces the mentor to take his support elsewhere. Nor is the mentor at the character's beck and call, since he presumably has matters of his own to attend to. He is a good source for letters of introduction, historical perspectives on current problems and other relatively discrete, specific assistance.
The mentor is often your character's sire, retaining social ties after release. It can be any other elder whom the character encounters along the way, however, or even a group of like-minded vampires such as the members of a local Tremere chantry or the vampiric denizens of a nearby monastery.
1) An ancilla with little influence, though good wisdom.
2) A respected elder.
3) An influential and well-connected Cainite of the area.
4) An elder with significant power in surrounding mortal society and strong connections to other Cainite communities.
5) One of the significant vampires of the age (whose full importance you likely don't yet realize).
