Marron Glaces from Bakuretsu Hunters. This show has its weaknesses, but I found it generally entertaining. However, it obviously needed to devote more time to Marron, my favorite character. :-) He's more sensible than most of the other characters, obviously genuinely cares about his silly brother, and doesn't spend all his time chasing after women. As a bonus, he has good hair. ;-)

I don't know where this cel is from...I _think_ it must be from the TV series, since I don't think he ever looks this grown-up in the OAVs.