Also himself/herself – grammatical question

The director was in the house as well.

n.b. this is a vocabulary question, not a grammar question

No, because I could put both "himself" and "also" in several places in the sentence. World order must be important, there could be very strange sentences written.
And it is in the same way when using "as well," or "equally" etc. I'm not sure about their proper place in the sentence in some cases, especially like in this one, when himself/herself comes additionally.

You could say:
The director, himself, was also in the house.

The director was in the house as well as the employees.

n.b the sentence in the OP was not correct

The aim is to not use also.