MVC - Redirect inside the Constructor

I would like to know how am I able to redirect the request inside the controller constructor if I need to do it?.

For example: Inside the constructor I need to initialize an object with an dynamic value, in some cases I don't want to do it and in that case I want to redirect to some other place. At the same way the rest of the constructor will not be executed neither the "original following action".

How can I do it? Thank you

EDIT #1

Initially I used:

  public override void OnActionExecuting(ActionExecutingContext filterContext) 

There I could redirect to some other controller/action/url, but later in time, I needed to change my controller, where I initialize an variable in his constructor and have some code that really needs to redirect the request :P

I need this also because the OnActionExecuting executes AFTER the controller constructor. And in my logic, the redirect needs to be done there.