Warning: contains spoilers forBlack Mirror: Bandersnatch.

Sitting across from him, its easy to see why hed have landed the part.

In conversation, Whitehead is intense and focused.

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Mmm-hmm.

Its just a quicker smoking-induced death?

Stefan does a lot with his hands, theyre always moving.

Is that a decision you came to, or something you and David worked on together?

That was part of the thinking behind it, it was puppet-like almost.

Exactly, its unnerving and slightly disturbing.

Did you rein it in at certain points?

Were there some takes where David was telling you just to give it everything?

For me it was hitting certain points in the character arc which really point that out.

There were definitely some scenes where it was about going all-out.

Its sort of a release.

So it was the cathartic moment.

You said the story is about the psychological unravelling of a young man?

Is it also about conspiracy theories, time travel and free will?

Anything else I think is kind of subjective, its left up to the audience.

Black Mirror: Bandersnatch is available now on Netflix.