The 37-year-old Penny Dreadful star was also joined by their adorable, five-month-old daughter (not pictured).
Josh recently opened up about his on-screen chemistry with co-star Eva Green.
“I also think that the chemistry sort of made itself evident early on to people,” Josh told EW of their inevitable hookup. “That’s the great thing about working on TV, which I’d never really anticipated. It’s kind of organic in that way. If something is working, then you can take advantage of it. If something’s not working, you can shy away from it.”