The actor brings a few of his favorite personalities to the light.

Kevin

Kevin appears the least of all the main characters.

He wouldnt have been able to survive, to cope, personified on their own.

glass-jamesmcavoy

Universal Pictures (3)

He doesnt want to be alive.

Hes probably one of the closest to me him and Barry were the closest to me.

Hedwig

Hedwig was born when Kevin was 9.

Film Title: Glass

Jessica Kourkounis/Universal Pictures

And thats why that part of Kevin dissociated.

It couldnt survive as part of the whole, but it dissociated and became a separate person.

He would come into Hedwig and block it out.

Film Title: Split

Universal Pictures

Hes not allowed to age.

Its so important for the collective that theyve got someone there who can remain childlike.

Thats where his physical life came from.

Film Title: Glass

Universal Pictures

His lisp was just something that [M. Night Shyamalan] threw in one day in rehearsal.

He said, Try him with a lisp.

And that kind of gave me a lot of the physicality for Dennis.

But the great fun of playing Dennis was playing Dennis pretending to be Barry inSplit.That didnt happen inGlass.

You ended up getting a straight white dudes version of that.

None of this stuff would be happening to me if there was a god out there.

Shes still celibate, shes never had sex.

So someones celibate, itd be real interesting if they really wanted to get laid.

I was thinking the whole time shes fantasizing about being touched.

Especially inSplit,less so inGlassbecause her faith has finally, truly been shaken.

Orwell

We had 23 inGlassand 3 of them got cut in the edit.

Orwell was never in the script.

We didnt have much time to get ready, only had a few weeks.

And we had nice lighting and all of that.

And I said, Am I going to be indoors or outdoors?

And he was like, Youre going to be in daylight.

Im like Fking hell.

So he really knows how to put muscle on quick.

Because thats the thing: I wasnt trying to get a superhero body.

It was really important I had a body that backed up the scary nature of this animalistic nature.

He isnt human, hes more alien and animal than hes human and the physicality had to be scary.

And I thought that was just an interesting, fked up to a life thats too much.

Glass is currently in theaters.