I was finally rewatching the (Barba) episodes of season 18 so far (and it wasn’t fun but I had to take some screencaps for a long-term project) and for the first time in a long while I noticed a rather drastic change in Raúl’s hair (and I have to admit that I’m a person who never catches the more subtle changes in someone’s hairstyle, lol).
The above screencaps are from 18.09 ‘Decline and Fall’ (left) and 18.13 ‘Genes’ (right).
It looks like he’s growing it out even more? And also what I noticed in this scene from ‘Genes’ is that the grey in his hair seems to be completely gone?
The last time I remember such a drastic change in one season was during season 15 where he started with REALLY short hair, then let it grow REALLY long (for season 2 Chilton) and then cut it pretty short again for the last few episodes of the season.