Controller inside a view

[eluser]Unknown[/eluser]
Hi, I'm developing some app and I'm trying to use a template-like method, for example, in the left side I'll load all users in my app and I want to do it in a view but that view needs a controller to load everyone, my question is: How can I load a controller in a view? if this is possible, if not how can I do this. Thanks in advance :-)