Sheen has slammed Trump before, calling him an empty-headed moron.

He also appeared inJoss Whedons anti-Trump PSAandcampaigned for Clintonwith the cast ofWest Wing.

Speaking with EW, the actor and activist highlighted why he has been concerned about the soon-to-be commander-in-chief.

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Credit: Amanda Edwards/WireImage; Drew Angerer/Getty Images

Its going to be a very, very anxious-ridden time.

Sheen addressed Trumps remarks on immigration enforcement, suggesting Americans wont stand for plans that entail mass deportations.

Were going to have to say, You cannot do this over us.

Youre going to have to go through us, around us, under us.

Were not going to give these people up without a fight.'

We belong to a very, very exclusive club.

Its called the United States, said Sheen.

And the dues are very, very high.

And sometimes the leadership does not represent the core values of most of the members of that club.

But we dont withdraw.

Were still part of this.

We cannot divest ourselves.

And it isnt just dealing with Don Trump.

Theyre the dangerous ones.

He can only do so much.

We cant sit back, he told EW.

We cant not get involved.

We have to get more and more and more involved.

But thats what it means to belong to this very exclusive club.

Anne of Green Gablesairs Thursday at 8 p.m.