Fanmail.biz

What is the difference between a manager and an agent? I found information on an actor I want to send a request to, and he has two people listed, a manager from one company and an agent from a different company.

As a second part to this, is one of them better to send the request to? I have addresses for both, but when it comes to manager vs. agent, is one of them the main person to deal with fanmail as opposed to the other?

Sorry if this question is confusing.

I've been told to send to an agent. Maybe you could email both the manager and agent and ask them, to know for sure?