GoT and Broadchurch actor portrays recurring character Vinder on time travel show.
Anderson previously worked withDoctor Whoshowrunner Chris Chibnall on season 1 of the crime dramaBroadchurch, which also featured Whittaker.
So did appearing on the HBO show help prepare him for his role onDoctor Who?

Jacobn Andreson on BBC’s “Doctor Who.".James Pardon/BBC Studios/BBC America
[Laughs] It’s really hard to take it seriously.
So I think I was prepared in that way.”
Presumably the experience also taught Anderson how to remain tight-lipped about plot details.
“So I’m maybe a little bit out of practice!”
Read that (still essentially spoiler-free) interview below.
That sounds a little bit scary.
Chris Chibnall wants a word!
It’s like, maybe he finally noticed the stuff you stole from the set ofBroadchurch.Exactly!
I was just like, “Yes!
It’s a thing that I’ve always wanted to be a part of.
And I kind of auditioned forDoctor Whoin the past.
Now it’s just one of the most fulfilling work experiences I’ve had.
But, yeah, that’s how it happened and it was a very exciting phone call to get.
I’ve been waiting for that phone call for 15 years.
Really, 25 years.
Well, thank you very much.
What do you remember about the first day you were on set?I was just like a child.
The first thing I did was some stills in my costume and hair and makeup.
I did the stills by a green screen that’s literally next to the door of the TARDIS.
I saw the blue doors and it was like I was being called to the doors.
I just went straight in.
you’re able to imagine that you really are traveling through space and time.Yeah.
It’s really immersive.
Like you say, it’s completely 360.
I just touched everything.
[Laughs] Flipped all the switches, pushed all the buttons, looked under the console.
Went up the stairs, looked at what was going on around there.
It was very exciting.
I was like, okay, I’ve got an ally in there.
Jodie is so the steward of the culture of that crew and cast.
It’s such a family and she is so good at keeping everybody together.
It’s all hands on deck, just people putting so much love into it.
[What] I love so much is all of these things that are made out of other things.
It’s something that I’ve always loved aboutDoctor Who.
My mode of travel, I was just like, oh, that’s a Sega Megadrive!
Oh, that’s an Atari keyboard!
But it’s not immediate.
You’re, like, how have they turned this so beautifully into what is is now?
So, yeah, it was so good to see her again but to see her in that role.
I don’t even know her name!
Yeah, I love Jodie.
Tell us a little bit about that.
The scripts are incredible and I’m very excited.
And are you also making a film withPrevengewriter-director-star Alice Lowe?Yes, hopefully.
It’s completely singular and unique and weird and wonderful in all the best possible way.
It’s calledTimestalkerand I’m so excited to be a part of that.
I am so angry about how underrated she is.
She shot a feature film in 11 days while seven or eight months pregnant.
She can do anything.
I’m a big fan of hers and she’s just as cool to chat to.