14 Celebrities You Had No Idea Were Related

10. Brendan Gleeson and Domhnall Gleeson

Relation: Father and Son. Irish actor, Brendan, famous for the Harry Potter franchise and In Bruges, has created a stellar young actor in his son, Domhnall, who is slowly becoming more famous than him! Domhnall has starred in box office hits such as the new Star Wars franchise and Ex Machina. The two crossed over when they starred in the Harry Potter franchise together. Brendan was Mad-Eye Moody and Domhnall played Bill Weasley.