I think we've canonically established Nick is a total fuck up when it comes to making other vampires.
We've got:
Wife. Killed her instead of turning her.
Rando he found on the beach. She made it, what, a day or two? Then he killed her.
Plague doctor. He maybe made it a bit longer than beach rando, at least until the townsfolk got wise and killed him (Nick doing nothing to stop them).
Richard Lambert. Another short-termer who Nick killed. I wish there'd been more fallout from this. But Richard was (to my recollection) never to be mentioned again.
(And with the above, Nick gets awfully vexed when people he turns into vampires act, you know, like vampires.)
Serena. Still alive, but hates Nick's guts. I would have liked to see her again because it's an interesting tension that she despises him, but they both ultimately want the same thing.
Janette (?). Assuming he did bring her over, he did it against her wishes. Though we don’t know how she feels about that.
Am I missing anyone?
Not a great track record!
We've got:
(And with the above, Nick gets awfully vexed when people he turns into vampires act, you know, like vampires.)
Am I missing anyone?
Not a great track record!