After Cogsinker stepped on and mocked Hermes after defeating him, Hermes vowed to kick his ass one day, and a rivalry was born. Though Cogsinker had been rather dismissive to Hermes in the past, after the air genasi helped free him from Nostoc's clutches, Cogsinker finds himself actually acknowledging the fact he has respect for his rival. He enjoys sparring with Hermes, and after seeing what his rival is capable of on the battlfield has no intention of falling behind.

Chrys loves to throw shade at Cogsinker, and he'll throw it right back. Their interactions tend to stay sassy, but there have been moments where Cogsinker can't help but admire the young girl's bold personality and her skill with a dagger. He's definitely keeping her to her word that together they'll take on the Brawler's League as a team one day.

When Cogsinker was trying to find his way after fleeing from Nostoc, he wasn't expecting to be grabbed off the docks by a wild woman who just 'really needed someone buff to lift these crates'. He learned later that said crates were, at the time, filled with stolen goods and treasure. Though her love is tough, Captain Valka gave Cogsinker a new start in the world, and taught him how to work with a crew, something he sorely needed to be taught after his years of fighting for only himself. He owes her a great deal, and also some money she lent him during their last visit to port, which he knows she'll still remember. Cogsinker is determined to find her since she went missing after Nostoc sunk her ship.