Rory Williams
When River creates an alternate reality by not killing the Doctor at Lake Silencio, Rory is now "Captain Williams". He is a soldier working for Amy Pond. They are not a couple in this version of history but Rory is still in love with Amy. He almost dies fighting the Silence, but is saved by Amy. The two are at River's marriage to the Doctor. In the now-fixed (main) timeline, Rory and Amy are still married and Amy has become a model/spokeswoman for a line of perfume. They are visited by their daughter River, who tells them that the Doctor is still alive.