Q called him that once.
Q: It was awfully drab, wasn't it? But this, this is a much more colourful representation for a human of American descent, don't you think? An elegant manor house, a beautiful Southern belle, a dashing Union officer determined to win her affections despite her hatred for Yankee interlopers.
JANEWAY: Enough. The only thing that interests me right now is the welfare of my ship and crew.
Q: Well, I'm sure your first officer, Chuckles, is it? I'm sure he's got everything under control for the moment.
JANEWAY: I'd like to make sure of that myself, if you don't mind.
Q: This has gone way beyond your ship. It's even gone beyond you and me. This is about the future of the Continuum itself.
Don't tell me the Q return in this series...
I love seeing Q but it makes no sense that the Q appear and Janeway doesn't bargain for their return home.