My mom worked while my dad was in school, and during that time my dad did most of the childcare. My dad didn't do much childcare when we were really little (under 3), but he did do a lot after that. And growing up my dad was very much a family man (plus he cooked and cleaned which was rare for his generation/culture).
When we were older, my dad was the scary disciplinarian. (We weren't really scared of our mom).
Overall he was very involved.
How involved was your dad in parenting?