The Bat Sibling’s Siblings
(outside the Batfam)
Surprise Siblings
Dick Grayson
Melinda Grayson-Lin
Daughter of Meili Lin and John Grayson
Nightwing (2016) #78: Introduced the future Mayor of Blüdhaven, appears to be working with Blockbuster
Nightwing (2016) #81: Melinda becomes Mayor Zucco, meets Dick, tells him she’s his sister
Nightwing (2016) #82: Melinda introduces Dick to her mother, who tells Dick about her friendship with his parents and her brief relationship with John Grayson
Jason Todd
Currently none
Cassandra Cain
Annalea
Adopted by David Cain in an attempt to create the perfect assassin
Robin (1993) #149: Learns she has a sister and then immediately killed by her sister, Cassandra while under Deathstroke’s control
Marque
Cass’s half sister on her father’s side, trained to be a perfect assassin
Batgirl (2008) #2: Cassandra meets Marque and Oracle helps her test her blood
Batgirl (2008) #4: Cass tells Marque they are siblings, stops her from killing their father, David Cain, Marque tells her that they are now enemies
Mad Dog
Adopted by David Cain in an attempt to create the perfect assassin
Batgirl (2000) #68: Meets Lady Shiva’s students, Mad Dog is one of them
Batgirl (2000) #71: Cass realizes that Mad Dog is the first child David Cain raised to be the perfect assassin
Batgirl (2000) #72: Cass tries to help him but dies protecting others from him
+Unnamed Girls
An army of girls trained by David Cain
Batgirl (2008) #3: Unnamed girl calls Cassandra sister as they attempt to kill her
Batgirl (2008) #4: Majority killed by Marque &/or Deathstroke
Tenji Turner
Son of Benjamin "Ben" Turner & Sandra Wu-San
Batgirl (2024) #9: Tenji Turner is introduced, Tenji interferes when Cassandra is questioning his father
Batgirl (2024) #9: Tenji tells Cassandra he is her half brother, the son of Lady Shiva and Bronze Tiger after they fight
Tim Drake
Currently None
Duke Thomas
Currently none
Damian Wayne
Heretic
A clone of Damian Wayne created by Talia al Ghul
Batman and Robin (2009) #12: Introduced when Talia shows him to Damian
Batman Incorporated #8: Kills Damain Wayne
Teen Titans (2016) #38: Appears to have died falling from a great height after being beaten by Crush
Respawn
Created by Ra’s al Ghul out of Talia al Ghul & Deathstroke’s DNA
Robin (2021) #1-2: Respawn is introduced in the Lazarus Tournament
Robin (2021) #6-7: Respawn tells Damian he’s waited his whole life to fight him and that he’ll pay for “what you did to me”. Damian tries to unmask him and Respawn fights him off
Robin (2021) #9: Respawn works with the others to defeat the Lazarus demon
Robin (2021) #11: Respawn tells Rose
Robin (2021) #13: Respawn tells Damian he’s his brother and about his treatment by Ra’s al Ghul and tries to kill Damian
Other Earths
Dick Grayson
Earth 3 - Rachel Grayson
Daughter of John and Mary Grayson
Justice League (2011) #25: Seen dying in flashback with their parents
*Earth 97 - Mitch Grayson
Son of John and Mary Grayson
Batman Forever (1995): John, Mary, and Mitch try to defuse a bomb and Two-Face shot at them with a machine gun, resulting in the three of them falling to their deaths
Jason Todd
Earth 12 - Danny Todd
Parents unknown
Batman: The Adventures Continue #5: Danny Todd tried to earn money for himself and Jason by joining a gang, died while acting as the lookout
Cassandra Cain
Currently none
Tim Drake
Currently none
Duke Thomas
Currently none
Damian Wayne
Earth 2: Helena Wayne
Daughter of Selena Kyle and Bruce Wayne
World’s Finest (2012) #6: Damian and Helena meet, across universes, acknowledge they both have their father’s eyes
World’s Finest (2012) #7: Helena tells Karen she trusts Damian and Damian replies that she “recognized the call of blood across the worlds”. Helena says Damian is “sort of me” and “sort of the little brother I never had” and Damian protects her from wolves. Helena calls Damian brother and asks him not to tell Bruce about her. Damian agrees and calls her sister
World’s Finest (2012) #10: Helena mourns after Damian’s death and goes to his grave
Earth 12: Terry McGinnis & Matt McGinnis
Batman Beyond (2016) #9-11: Damian and Terry fight against each other then work together to destroy DNA nukes
Earth 49: Athanasia al Ghul
Daughter of Talia al Ghul and Bruce Wayne
Injustice 2 (2017) #4: Introduced to Damian as his sister by his mother when she breaks him out of jail
*Thank you soleminisanction for the addition!
