The Daredevil star and his unnamed girlfriend are expecting their first child together.

The news leaked during a panel chat about Cox's hit Marvel TV show at the Toronto Fan Expo in Canada on Sunday (04Sep16), when the actor revealed his partner will give birth "very soon".

He joked, "In fact, my girlfriend was pretty amused when I said I was going to Toronto a couple weeks beforehand, by the way. So, keep your legs closed."

Reports suggest Charlie's girlfriend is Samantha Thomas, a producer on Marvel shows Agents of S.H.I.E.L.D. and Jessica Jones.