In the movie, much like in the comic that inspired it, we learn that Bruce has taken in three very different orphan children, who assist him on his travels and with his studies. They're not Robins, and that's not exactly unusual—Bruce's children aren't always Robins.
She was never adopted by Bruce, having her mom still alive though not mentioned in Wayne Family Adventures, but is a great friend of the family, being sometimes considered part of it and spending a lot of time in the mannor.
I have read many comics, esp. for legacies like Robin. It depends on the universe, and the context on which you mean. In main continuity, Damien is his biological son, but Dick, Jason, and Tim were all essentially adopted into his family.
Damian Wayne is the only son of Bruce Wayne and Talia, the only grandson of Ra's al Ghul. The character was created by Mike W. Barr, and first appeared in Batman: Son of the Demon (1987).
Following the untimely death of Tim's biological family, Bruce eventually did legally adopt him, but it took a while for that to actually come to pass. Specifically, that story can be found in the “Face the Face” arc, which featured Tim and Bruce going up against Harvey Dent.
Damian Wayne, Tim Drake, and Jason Todd are the ones that most people believe have been fully adopted. There is some contention over Dick Grayson, though it looks like it was retconned so that Batman fully adopted him as a son. It looks like he adopted Cassandra Cain as well.
Among the big announcements from James Gunn about the future of the DCU was news of a new Batman in a film called The Brave and the Bold. This movie would have our first big-screen Robin in 25 years. But that Robin won't be Dick Grayson, but Damian Wayne, Bruce's biological son.
Because of their relationship, Terry occasionally brings out Bruce's sense of humor. The twist about Bruce and Terry's hidden genetic relationship to each other seems to be foreshadowed in a number of episodes: at the end of "The Call", Superman implied he knew of Terry's true heritage.
Terry is the official ambassador of Sea Legacy and Only One, alongside Leonardo DiCaprio, and founders of both charities Cristina Mittermeier and Paul Nicklen. Is of mixed American, Irish, English, German and Lithuanian descent with the surname 'McGinnis' originating from Ireland. Has a reported IQ of 185.
Damian Wayne in Batman #658 (December 2006). Art by Andy Kubert. Damian's origin was unknown to Batman. Damian was genetically perfected and grown in an artificial womb to be the perfect warrior.
Robin the Boy Wonder was actually Dick Grayson, the youngest of a family of circus aerialists, who witnessed his mother and father plunging to their deaths from a sabotaged trapeze. This murder was also observed by wealthy socialite Bruce Wayne.
Tim eventually gave up the mantle rather than put his father through any more lies, but losing his life as Robin put he and Steph's relationship through even more strain. Steph eventually decided to take matters into her own hand and become Robin herself in Tim's stead.
Lor-Zod was then renamed to Chris Kent, Superman's forgotten son. Chris Kent was Superman and Lois' first child, and his adoption was an important moment in their history. Chris came from abusive parents and found a loving home.
In one episode where Bruce has a birthday, the writers said his age in the initial script, but had to take it out because the network would not allow it to be revealed. The producers, however, said off-the-record that Bruce Wayne was about 80.
Superman has known Batman's true identity for years. It's no surprise then that Lois Lane does as well. Lois has been aware of Batman's secret identity in the comic books for years and discovers it in the movies at the end of Batman v Superman: Dawn of Justice.
Through Talia, Damian is not only Arabic but also has Chinese ancestry as well through Ra's' father, the Sensei. Yet, most of the time this is overlooked save for rare moments in comics that choose to acknowledge that Damian has any other cultural roots beyond the ones his father provided.
Damian Wayne's Mother Is Talia al Ghul, Making Ra's al Ghul his Grandfather. To understand Damian's relationship with evil, it's important to examine the root of his evil: his mother and, more importantly, his grandfather.
No, none of the Robins are biologically related to Joker. In comics, Joker has never been shown to have any relation to Richard Grayson, Jason Todd, Tim Drake, Stephanie Brown, Damian Wayne, Carrie Kelly, or Matthew McGinnis. However in the DCAU, Joker did kidnap Tim Drake and turn him into a Joker Jr.
It is revealed later that the mercenary Deathstroke is responsible for brainwashing and influencing Cassandra's villainous activities. She has since been legally adopted by Bruce Wayne as his daughter.
She also becomes the adoptive daughter of Bruce Wayne/The Batman after she turns on her father and is one of Bruce's five children in current continuity (as well as his only daughter). Cassandra was the first Batgirl to star in her own ongoing Batgirl comic book series.
