Kowalski/Relationship

Lexy
"Main article: Lexy and Kowalski"They may not be siblings by blood, but the two of them are the closest thing to brother and sister they ever got. Lexy states that she and Kowalski rarely fight, but he sometimes gets on her nerves. Kowalski is someone of a surrogate mother to Lexy, often protecting her more than their other family does.

Skipper
Skipper respects Kowalski's intelligence. However, he is fully aware that most of Kowalski's inventions could hurt someone, including their entire team.

Rico
They are polar opposites. However, Rico did show attraction to Kowalski after being hit by one of the penguin mating calls.