Then they told me, Oh, by the way, you got the job.

I wanted to celebrate, but there was no one around me.

So I just jumped up and down on the bed, tried to do a front flip.

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Photo: Getty Images

And then what next, after your front flip?

I just started researching because there was a lot of material on the guy I played.

He was very funny and very self-deprecating.

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Masters of the Airstar Anthony Boyle as Major Harry Crosby

What was that like?

Most rehearsal processes are sitting around leafing through a script and drinking lattes, and this was not.

It was good to bond everyone together.

How long did that process last?

It was a pretty intense workout regimen.

It was a lot to take in, but it was good fun.

Poor Harry Crosby and his airsicknessif only he had those Amazon motion-sickness goggles.

If only he had those goggles.

We were trying to make it as real as possible.

It was like being on a roller coasterwe were getting banged about in these things.

What made you feel most immersed in that time period?

The costumes are incredible, and [costume designer] Colleen Atwood is an absolute god.

When you put the uniforms on, you feel a certain way.

You also haveManhuntcoming out on Apple TV+ next month.

Lets talk more about thatmost importantly, was that your real mustache?

It was my real mustache.

It should have got its own credit.

How long does growing a mustache like that take?

That was a surprise to me.

It was about two or three months.

Now Im getting, like, a phantom limb with that mustache.

I wish it was here to sort of twizzle.

Sadly, I dont personally know what thats like, but I can imagine.

Its really incredible stuff.

Youre playing another realyet rather more infamousperson in John Wilkes Booth.

When did the process of filmingManhuntstart?

It was a great experience.

I fell in love with riding horses, and I loved Savannah.

It was so hot, especially in those period costumes in the height of summer.

Youre definitely developing a track record for taking on characters who force you to go method.

Did you learn to ride for the role?

It was my first time doing it, and I took to it like a duck to water.

I showed up with a mustache and had the boots on.

I loved my horse, Bradley; he was a little fucker.

They first put me on a horse to learn that was quite slow and dull.

What can we expect from you in 2024?

What are you looking forward to?

Youve done a lot of different accents in your various roles.

How does it feel to use your own?

This conversation has been edited and condensed.