Kowalski was a trainee recruited to fight the Heirs of Kemmler and their zombies and to stop the Darkhallow from being performed on Halloween. He was recruited because of sudden serious shortage of wardens due to The War. He is described as a blocky young man with distant, haunted eyes.
In the seriesEdit
- Main article: Dead Beat
In Dead Beat, Kowalski is a young Warden trainee, along with Warden Yoshimo, fighting under Anastasia Luccio's command. He met Harry at the meeting at McAnally's Pub. He fought zombies with the other Wardens and was killed by Specters called by the Corpsetaker.