With Normal People and The Young Offenders proving to be two of the biggest Irish shows in recent memory, we'd forgive you for thinking that you know everything about their leading actors, Alex Murphy (Conor), Chris Walley (Jock), and Paul Mescall (Connell in Normal People).
Well, prepare to know a little bit more because if you're wondering which actor photobombed every single school photo possible, who can cite the alphabet backwards, or hold their breath underwater for 87 seconds, this video is for you.
Aside from this, there's also a lovely throwback photo of Alex Murphy and Paul Mescal hanging out together during their college days.
After spending the best part of five years together on The Young Offenders film and TV show, it's clear that Walley and Murphy know everything about each other, but it's still great to watch them squirm during Mescal's questions.
Aside from this, Mescal even gets in a cheeky dig about the recent articles in the British press which claimed him as one of their own following his recent Emmy nomination.
Fans of The Young Offenders can see the fourth episode in Season 3 this Friday on RTÉ1, while Mescal recently starred in the new video for The Rolling Stones.
If you're a fan of The Young Offenders and Normal People, this is definitely for you.
Take a look.
Clip via BBC Three