Adapting a book as beloved asLooking for Alaskais no simple feat.

He shared so much of himself and his life with us.

But it was really terrifying for me.

Looking For Alaska

Alfonso Bresciani/Hulu

It was really lovely having him as such a helpful creative force, she tells EW.

He was always really supportive and gave us so much freedom and trust.

He really blessed us by telling us, These are your characters now, and it was really powerful.

Looking For Alaska

Alfonso Bresciani/Hulu

And he really meant that, Plummer adds.

He and I had a conversation about the person that he knew who Takumi was based on.

Lee breaks into a huge smile and throws out his hands in a shrug.

Looking For Alaska

Alfonso Bresciani/Hulu

Thats an amazing, incredible, unbelievable experience to have the original artist tell you that!

he says with a laugh.

To have that collaborative spirit with John was a huge honor.

Looking For Alaska

Steve Dietl/Hulu

Hes the most casual, laid-back person youll ever meet.

Hes a father, and he takes on that father role with everybody.

I just trusted my instincts.

It was a very easy process once I trusted myself.

However, Love did have a hiccup on his first day of filming.

Day one was the toughest day because it was overwhelming, he admits.

And the first day we came to set, John was there.

I was so nervous that I spelled t-a-b-e-l instead of table.

It was so mentally overwhelming, but the Colonel couldnt be overwhelmed.

But once I got those jitters out and fell into the world, then everything just got fun.

It was in front of everybody.

I laughed a lot, Plummer says, smiling.

Because Denny, hes a very confident gentleman, very charismatic, I loved seeing him freeze up.

That brings me great joy.

Love shakes his head.

But [Green] was very gracious about staying out of the way, he says.

But it wasnt fun, it was terrifying.

Once I got that out the way, it cant get no worse!

I just love how the connection is so real in that moment and how vulnerable we both were.

Its such an important scene in the book, too.

I remember reading it and being so worried about putting it on the screen.

And theres a scene in the fourth episode where Miles is telling Alaska, Im not going anywhere.

I want to be with you, Plummer adds.

That was a really beautiful scene to shoot.

Everything is there we even got the swan.

All eight episodes ofLooking for Alaskabegin streaming Friday, Oct. 18, on Hulu.