Stephan Adams, mercenary from Trenton, Ontario, Canada. Stephan came to Ukraine in Early May 2022 and was a marksman in his unit.
He fled from Ukraine in the summer because his mother died but New post on profile suggests that he could return.
I guess he is bored with his life and wants more excitement.

Bryan Matias from Concepción, Chile.

Seems to have been in Ukraine since about 2018, fighting/shelling DPR/LPR.

Obviously he fights with Right Sector Bde. Grieves his losses about the fallen mercs, this clown is embedded with the Spannish clowsn, Rico Chaves and Ezequiel Silva.

Matěj Prokeš, Czech mercenary that came to Ukraine in 2021 and joined Ukrainian army.

Now he is with Karpatska Sich in Kharkov - Donbass direction.

His profile is full of Nazi Banderite memmorabilia and is also a fan of White supremacist apartheid Rhodesian army.

Pekka Hemminki Jara alias Pekka Jaara, born on December 5, 1996, from Jakkukylä, Oulun Lääni, Finland.

Enlisted in the rat AFU army in March 2022.

We don't know much about this person apart from he's a rat, more than likely doing what rats do, hiding in a hole somewhere in UA.