Fallout 4’s Nick Valentine is a synth and a pal to your character in the game. He has a creepy, offputting look, but he’s handy to have around in fights. Cosplayer Arcanum Order has done an astoundingly cool job of bringing the character to life. This is probably the best Fallout 4 cosplay I’ve seen so far. He did a wonderful job with the makeup and applied prosthetics to replicate Nick’s synth look.
You can see a couple of in-progress photos below. Arcanum used Worbla to make the hands and what looks like latex for the faux textured skin. He sculpted the synth skin on a foam wig head and painted it to look metallic. He aged and painted everything to look washed out like the character, too. It’s impressive.