Botticelli

feiran suggests that it's my turn for a round of Botticelli. Refer to the links and discussions in her posts for rules. I'll be doing "one stump, one direct", the same as her.

The character is fictional.

The letter is D.

For easy reference, details revealed by direct questions:
I am human.
I am male.
I am adult, over the age of 20.
I am from comics.
I am not evil.
I have no extrordinary powers.
I'm not a DC character.
I do not appear in a superhero comic.
I appear in a newspaper comic strip.
I have been in movies, but not in a very long time, and it's certainly not what I'm best known for.

And dushai with the win! Dagwood Bumstead it is.