Strange "Statement is not reachable"

[Orgoton]

I created and Actor Class like this:

class Actor
{
    public this()
    {
        frameQ[this.type].add(this); //add myself to the queue
        HP=this.MaxHP;
        MP=this.MaxMP;
        if (this.type==ActorType.Other) return;
        if (heartQ[0].size()>heartQ[1].size()) heartQ[1].add(this);
        else heartQ[0].add(this);
        if (this.type==ActorType.Creature) AIQ.add(this);
        return; /*****/
    }
public final static const ActorType type=ActorType.Other;
}

(ignore functions calls, they aren't relevant)

and then on the Player Class

public class Player : Actor
{
public this(float x, float y, ubyte level)
    {
        this.level=level;
        super(x, y);
    }
public final static const ActorType type=ActorType.HumanPlayer;
}

Now the problem lies on the line marked with "***" (the return statement in Actor's ctr). If it is there, DMD says that "statement is not reachable" without giving me any information on why or which line:

semantic2 actor
semantic3 actor
warning - Error: statement is not reachable
Process terminated with status 1 (0 minutes, 0 seconds)
0 errors, 0 warnings

So, if I remove the "return;", the program compiles fine. What happened?

Btw, it is my (Assembly) programming habit to put a "return;" at the end of every function, even if it is not void or is unreachable.