He’s A Dad?!:
Angel (Buffy the Vampire Slayer and Angel)
Yes, sadly, Angel had a wild romp with fellow vampire Darla, and out popped young Connor. Angel didn’t have the opportunity to be a very good dad, as Connor was spirited away to a hell dimension when he was a baby and returned as an extremely troubled teenager determined to kill his old man. Them’s the breaks of vampiric fatherhood, I guess.
Vision (Marvel Comics)
Sure, Vision was a dad, as long as imaginary kids count. After the Scarlet Witch married him, she dreamed up a couple of rugrats in her slowly-going-insane mind and used her reality manipulating abilities to make the kids real. Real until Professor Xavier realized the children didn’t belong in the world and had her dissolve them into the ether. Ah well, it was fun while it lasted.
Data (Star Trek: The Next Generation)
Android Starfleet crewmember Data did indeed create an artificial daughter named Lal. She lived for a brief time until her systems shut down, and she essentially died. Data transferred her memories into his own neural net so that she’d always live on within her dad.
Hulk (Marvel Comics)
Yup, the incredible Hulk is a proud papa, twice over. Well, perhaps not proud, because he doesn’t exactly know that his writhing miserable mass of a son, Skaar, crawled out of the outer space swamp where he was born, and he’s not aware that Thundra pulled the old impregnation-by-cheek-swab trick to give birth to the Hulk’s daughter.