Theyare half brothers
VOILENCE AND HIS BROTHER THE UnDeRtAkEr
The Undertaker doesn't have son, although his Kayfabe brother in the WWE is Kane.
Kane is undertakers little brother in wwe but off-set they are not even related
Kane is Undertakers storyline half-brother.
He is the brother of the Undertaker in smack down and Kane is in RAW. they both a scary and a good fighters. [:
He is buried alive by his brother Kane with help of Nexus
In 1997, Paul Bearer brought Kane to the WWE ( then WWF ) to challenge the Undertaker. It was revealed that he was the Half-Brother of the Undertaker, and later on that Paul Bearer is Kanes father.
Kane
In the wrestling world, Kane is Undertaker's half brother.
Kane is a WWE wrestler and also the brother of the Ledgend The Undertaker. He has won many different matches. Good Luck, sspr
Kane is the younger half brother of The Undertaker, and the son of the late Paul Bearer(rest in peace).
no the Undertaker and Kane are not even real bros its just for WWE