Here is a completely unneccesary and uncalled for guide to the dating status of several Tezuka characters. Some of these may be offensive to people who have no sense of humor.
Black Jack - Do you really want to date an unlicensed surgeon? He could be arrested at any time, and you would also get in trouble.
Adult Melmo - She's only an adult for so long...
Wato - She's probably kind of busy, taking care of Hosuke. Not to mention, you could get killed if he turns evil.
Astro Girl - If you honestly want to date her, than you are a pedeophile.
Pinoko - See above.↑
Unico -
SHE'S A F*CKING UNICORN, FOR GOD'S SAKE!!!
Princess Knight - You could be killed, especially considering all the fairy-tale action that she's involved in.
Mr. Pompous - Do you really want to date him?
Rainbow Parakeet - You could get in
LOADS of trouble. He is a criminal.
Cleopatra - Travel
WAY back in time, and have your ass kicked by a bunch of warriors. Not a good idea.
Astro Boy - Remember what I said about Astro Girl and Pinoko? You're a pedo, if you want to date him.
Kimba - You are a furry freak, if you actually have attractions to Kimba.
Adolf Hitler - Busted, you neo-nazi freak.
Ma-chan's mother - She's married.