Last time we saw Robin Arryn, Lord of the Eyrie, he was being beaten around the backside with a wooden sword by the Knights of the Vale, in a futile attempt to toughen him up.
But how could we forget our first introduction... as he suckled at his mother Lysa's breast, while possibly in double figures.
He was creepy, pale and weirdly murderous for someone so young, always wanting to hurl people from 'the moon door', the Eyrie's inventive form of execution.
Oh, and he was slapped around the chops by Sansa for ruining her snow sculpture of Winterfell in a childish rage.
But what a difference a few years makes.
Now fans of the show are going absolutely wild for 'Sweetrobin', after he turned up again in the series finale of Game of Thrones for the first time since season six.
Now 18, actor Lino Facioli pitched up for the King's Landing pow-wow in which they all decided – in a remarkably straight-forward manner – who would be King of the Seven (and then Six) Kingdoms.
Read more: Game of Thrones final episode round-up
Flanked by his long-time bannerman and advisor Yohn Royce, he was still clearly keen on those blue doublets with the ruffled shoulders, but there was no denying his easiness on the eye.
Yeah, introducing solids really improved Robin Arryn.— Nicole Cliffe (@Nicole_Cliffe) May 20, 2019
Many have likened his swan-like transformation to the time Neville Longbottom from the Harry Potter movies.
Matthew Lewis also blossomed into a hunk, compared with the nerdy, toad-holding he was better known for in the wizarding movies.
Embarrassingly, it appears he’s fully aware of the situation...
And then there’s this absolute nugget of him with Bran Stark, the boy who would be king.