Charlie developed into a relatable character whose concerns were more grounded than the problems of being an ageless warrior, often telling MacLeod things that bordered between earnest insight and comic relief. He called himself a "liberated male" who had no problem caring for a baby, but refused to change diapers. He willingly put himself in danger against former marines and assassins to help MacLeod, but openly hated heights. His mixed heritage was a deep part of his identity. In "" (1994), Charlie remarks that he and Jamie Lightfoot, a child of mixed heritage, both have "something in common... We carry the blood of two different worlds." Likewise, family legacy was important to him. He tells MacLeod, "A man like you, I mean, you got to have a kid of your own, man. Someone to share things with, you know, to love, to teach all this stuff, you know? I mean, who can you pass that on to?"