Here's where you've seen Otis Milburn from Netflix's Sex Education before.

Netflix’s latest comedy-drama series, Sex Education, is scoring rave reviews for all the right reasons.

The progressive, sex-positive show explores all the awkward intimacies of teen sex and coming to terms with your body during the universally weird phase that is adolescence.

However, if you’ve watched Sex Education’s leading character, Otis Milburn (played by 21-year-old Asa Butterfield) then you’ve no doubt wondered to yourself: “Where do I know him from?”.

Watch the trailer for Netflix’s Sex Education here:

It’s because Butterfield was the brown-haired and wide-eyed leading child actor from films like the critically-acclaimed, 2011 Martin Scorsese masterpiece Hugo – in which he played the titular character – as well as Bruno in the 2008 film adaptation of The Boy in the Striped Pyjamas.

Twitter users have made a point of looking up where on earth they’ve seen Otis before too.

that moment when u look back to films u used to watch and noticed the familiar cast.. like i just realized asa butterfield was the kid in the boy in the striped pyjamas omg

— kizoux (@kizoux) January 19, 2019

g-guys…..is the main character in sex education asa butterfield?? (is that even his name?) he looks really familiar and I think it’s because his face literally hasn’t changed since he was about 10

— amber (@suburbiakiyoko) January 18, 2019

Throughout the 8 episodes of Sex Education I KNEW that Otis looked familiar ???????????? I KNEW! and only now did it click that it’s Bruno from The Boy in the Striped Pajamas ???????????? and I love that movie! @asabfb

— mary (@MsMariskaS) January 17, 2019

I spent all of the first episode being like, WHY DOES THIS KID LOOK SO FAMILIAR?and then I realized Asa Butterfield grew up in flicks from the last decade (HUGO, MISS PEREGRINE’S, and THE BOY IN THE STRIPED PAJAMAS) and I kinda feel bad I never bothered to IMDB him until now.

— Abby Norman (@abbymnorman) January 12, 2019

The latest was a little boy who looked annoyingly familiar – yeah, it’s Asa Butterfield who was just the lead in Hugo. Properly famous!

— Sarah (@essbeevee) February 6, 2012

But that’s not it. The British actor has a pretty impressive film resume which also includes starring opposite Game of Throne’s Maisie Williams in the 2018 rom-com Then Came You and being directed by Tim Burton in the 2016 film Miss Peregrine’s Home for Peculiar Children.

Here are all the other films and series you’ve probably seen the actor in.

Calvin in Then Came You, 2018

Second Lieutenant Raleigh in Journey's End, 2017

Jake in Miss Peregrine's Home for Peculiar Children, 2016

Hugo in Hugo, 2011

Norman Green in Nanny McPhee and the Big Bang, 2010

Mordred in Merlin, 2008-2009

Bruno in The Boy in the Striped Pyjamas, 2008

Did Asa Butterfield's character look familiar to you? Tell us in a comment below!