Jake is Daria's father.  He's pretty relaxed and clueless at home (most of the time), or at least appears to be that way. He's a somewhat successful marketing consultant who loves to count his money.

Jake had a pretty miserable childhood that included military school, and he still files into the occasional rage against his father, one of which has triggered a mild heart-attack. This led to a brief period of introspection on his part, and now he's just happy that he's a better father than his was.

Jake hasn't been changing too much, but he's finally getting to the point where can crack jokes.