Initially, Steve is primarily a comedic character, embodying the classic trope of the clumsy, socially awkward nerd. His actions are driven largely by his infatuation with Laura.

As the series progresses, Steve's character gains depth. His intelligence is showcased in more meaningful ways, and his vulnerabilities are explored. He develops genuine friendships and demonstrates loyalty and compassion.

In the later seasons, Steve begins to accept himself for who he is, flaws and all. He becomes more confident and less reliant on the Stefan Urquelle persona. His relationships with the Winslow family deepen, and he becomes an integral part of their lives.

By the end of the series, Steve has transformed into a more balanced and confident individual. While still retaining his quirky personality, he has gained maturity and self-awareness. The series finale suggests a hopeful future for him, both personally and professionally.