Role added by connieblackwood on August 17, 2022
In this trope, a third person, mainly a Big Brother Bully or an Annoying Younger Sibling, is introduced specifically in a way to complicate the relationship between established siblings, or between the established siblings and the new sibling, hostile or not. If the characters aren't related by blood, but through the same Meta Origin consider themselves Blood Brothers or Bash Brothers literally, then another character with the same Meta Origin and honorary sibling status may suffice.
Fan Casting
Cain and Abel and Seth
Paige Matthews
Hela (Marvel Cinematic Universe)
Michael Gray
Adam Milligan
Hollyleaf
Noah Kaiba
Robin/Damian Wayne (New 52)
Damian Wayne/Robin (DCAMU)
Larry (Pinky and the Brain)
Tim Drake
Robin/Tim Drake (Batman: Arkham)
Robin/Tim Drake (Young Justice: Outsiders)
Robin (Damian Wayne)
Adam Carrington (Dynasty)
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