The Joker is not Bruce Wayne's brother. Comics typically portray them as having a purely antagonistic dynamic rather than a family connection.
No, the Joker is not Bruce Wayne's brother in the traditional comic storylines.
Yes, in some comic storylines, Joker is presented as being related to Bruce Wayne in unexpected ways.
No, they're not. Bruce Wayne is Batman and the Joker is his nemesis. They have no direct family relation.
No, they're not. Bruce Wayne is Batman and the Joker is his nemesis, not a brother.
No, they aren't. Bruce Wayne, also known as Batman, and the Joker are not related by blood or family ties in the comics.
No, Bruce Wayne and the Joker aren't related. They have no direct family or blood ties within the DC Comics universe.
Yes, in some comic storylines, the Joker is responsible for the death of Bruce Wayne's parents.
Definitely not. In comic books, Bruce Wayne is Batman and the Joker is his arch-nemesis. They have no familial connection. Their dynamic is based on good versus evil, not kinship.
No, Bruce Wayne isn't dead in the comics. He's a resilient character who always finds a way to survive and continue his vigilante work.
Definitely not. The comic universes of Thomas Wayne and Joker don't intersect in that way. They have their own individual and unrelated story arcs.