Dr. Magnus is a young man with green eyes, pale skin dark brown hair slicked back. He wears a dark green blazer, with a magenta jumper and black and white tie and shirt underneath. He is typically seen with a red lollipop in his mouth.
Dr. Magnus is voiced by Phil LaMarr.
In Batnapped, Doc Magnus oversees as Wonder Woman and Supergirl work on their shop projects by modifying their jets. He tells them to call it a night soon and that their projects can wait until tomorrow morning. Wonder Woman asks for a few more minutes, while the school's new I.T girl Lena Luthor enters the room to give him copper wiring.
In Intergalactic Games, he attempts to defend his new experimental robots, Lead, Platinum and Iron after they malfunction and go on a rampage. He claims to have made significant progress with them, and his new responsometer technology allows them to become more human, giving them free will and potentially allowing them to become superheroes. Principal Waller declares that she cannot have teachers building evil robots, especially with the added scrutiny around the school because of the Intergalactic Games, and decides to let the student tech committee decide what to do with them. After an analysis, the committee decides to destroy them. He later attends the opening ceremony of the Games and is instructed to increase security by Principal Waller when the Female Furies are allowed to participate. He installs fingerprint monitors on every door so that the school is only accessible to SHHS students. After the Furies are arrested for trying to steal his responsometer, he decides to have it destroyed so it would not fall into the wrong hands. After Platinum, who was spared by destruction by Lena Luthor and was fitted with the responsometer which was also spared from destruction appears at the Games ending ceremony after helping defeat Lena and later Brainiac, he tells her that she is not finished yet. She replies that she is nor the kind of girl to miss a celebration like the one the students are having. He replies that she has never been any kind of girl before, to which she responds that there is a first time for everything.
In Drive Me Crazy, Doc Magnus reviews his students' vehicle assignments and praises Cyborg, Harley Quinn, Wonder Woman and Batgirl's vehicles. When he gets to Big Barda, he reminds her that the assignment was to build a vehicle with a motor when her vehicle is revealed to be a common tricycle. Barda then admits that she never learned to drive.
Past Times at Super Hero High
In Past Times at Super Hero High, Doc Magnus appears with a beard as a teacher at Savage High in an alternate timeline working in the shop class. Harley Quinn uses a kaboom candy in soda pop to create a noise to distract him into exiting the classroom to investigate outside so that she and Batgirl can sneak inside and lock him out so they can fix the time machine. After he returns and confronts them, Harley turns on the newly-fixed time machine, causing it to disappear in time right before his eyes, surprising him. When they arrive in a dystopian future, Harley mentions that she was "just tryin' to get away from that madcap Magnus". After Batgirl and Harley return to Savage High, he appears as one of the evil staff being ordered by Vandal Savage to attack them. As their other friends join the battle, Doc Magnus uses this as an opportunity to try out his new robots, the Metal Men. As the robots battle the heroes, he mentions that he is excited to see what they can do when their responsometers are complete. Batgirl remembers that the Doc Magnus she knows taught them that robots can be defeated with an electromagnetic pulse attack. She and Supergirl manage to defeat the Metal Men throwing electromagnetic bombs at them, and she inspires her friends to use what they learned from the other teachers against them. After the present timeline is restored, the evil Doc Magnus from Savage high presumably merges with that of the restored timeline.