Rory Williams/Other realities

Alternate counterparts of Rory Williams existed in other realities. These individuals shared similarities with Rory from the Doctor's universe, despite existing in parallel universes or alternate timelines.

Winter Quay Rory's timeline
In an alternate timeline, Rory was sent back in time by the Weeping Angels and spent the rest of his life trapped in the Winter Quay where he eventually died of old age after having his temporal energy fed off of by the Angels. This timeline was negated when the current Rory and Amy jumped off the roof of the Quay, negating this future and killing all but one of the Angels, which later sent him back as well as Amy Pond. (TV: The Angels Take Manhattan)

Lone Rory's timeline
After averting the timeline above, Rory discovered his own grave in New York in 2012, immediately before being sent back in time again by a surviving angel. Rory initially lived out the rest of his life in the past without Amy, eventually dying at age 82, as stated on his gravestone that he had just seen. After Amy willingly allowed the same angel to send her back in time to live the rest of her life by her husband’s side, Amy's name suddenly appeared below Rory's on the gravestone, indicating the timeline had been rewritten. (TV: The Angels Take Manhattan)

River Song's World
In an alternate timeline where all time happened at once, Rory was a captain in a military force led by Amelia Pond. They tried to restore the timeline without killing the Doctor. Unlike Amy and River, he had no memory of the correct timeline. He was attracted to Amy, who was looking for him but didn't recognise him. The Doctor tried to get them together, but Rory saw right through it. When the Silents broke free, tormented by his Eye Drive, he stayed to hold them off, though it meant certain death. Amy saved him, then told him they should get a drink and married which he happily agreed to. When the Doctor married River, Rory consented to the marriage as the bride's father, even though he didn't understand what was going on. (TV: The Wedding of River Song)