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|“||Face it Gru, villainy's in your blood!||”|
— Dru commenting his brother
Robert Gru (deceased)
Felonius Gru (Twin Brother)
Dru Gru. is one of the two deuteragonists (alongside Mel) of Despicable Me 3, the twin brother of Felonius Gru and son of Robert and Marlena Gru, Lucy Wilde's brother-in-law, and the adoptive paternal uncle of Margo, Edith, and Agnes. After the reunion with his brother and his family, Dru looks forward to learn some skills of being a villain from him, though Gru had been an Anti-Villain League agent and quit villainy for a while. Dru is also owner of Dru's mansion and Dru's Villain Wheels.
Similar to his identical twin brother, Dru has a unique appearance with a long pointed nose just like his mother, Marlena. But unlike Gru, who is bald, he has a full head of blonde shaggy hair, inherited from his father, and wears a white suit, scarf and shoes, as opposed to Gru. His eyes are blue, and he is left-handed.
Despicable Me 3
When Dru and Gru were born, their parents divorced and took one child each. Dru's father, Robert, became his guardian, and they both moved to Freedonia and Dru grew up there. Robert was a legendary supervillain and started the hog-raising business as an undercover of his acts, yet, he was unsatisfied with his son Dru, who seems to have no talent of being a villain due to his clumsiness, but he is a kind-hearted and passionate man.
After Robert's death, Dru inherited his mansion and later contacts with his brother, Felonius, by sending his butler, Fritz to notify the news. Gru then finds his mother to ask about the family he never knew, and she told him the true story and implies that she actually liked Dru more. As such, Gru with his family visit Freedonia and Dru welcomes him warmly, but Gru begins to feel jealous. Dru also welcomes warmly to Lucy Wilde, Margo, Edith and Agnes, who proclaims them as their genuine nieces.
After his nieces and Lucy go to the town to give the twins time to bond, Dru shows Gru their late father's lair and persuades Gru to pick up villainy again. While Gru tells Dru that he had given up being a villain and isn't planning to go back, Dru shows his twin their father's car (Dru's Villain Wheels) and suggests that they drive out in it. As Dru takes the wheel, he shows Gru the car's weapons and many functions, even when panicking as his driving got them off the road and off the edge of a cliff. After Dru stole candy from one of the van stands at the Freedonia Cheese Festival and got the attention of the local police from the van's alarm, Gru took the wheel and got them to safety; as well as showing Dru that he hadn't lost his villain touch.
Once being safe, they parked the car on a small beach so they could dry their clothes, Dru asks Gru to do a heist with him together. Gru wasn't sure at first, but he finally agreed to his brother's proposal so they could steal the Dumont Diamond from Balthazar Bratt; and get his and Lucy's job back. When the two got back to the mansion, they switch clothes to play a trick on the girls, but Lucy and the girls could see right through it.
The next day, as Gru was explaining the layout of Bratt's Lair and the plan to get in and grab the diamond, Dru acted like he was watching a film as he sat back and ate popcorn. He came upset as he learned his part in the plan was to be the get away driver, when he wanted to be at Gru's side when they get their hands on the diamond and become the richest villains in the world. When the two get to Bratt's lair, Dru "changed the plan" and accompanied Gru as they made their way in. Gru had to help Dru through the building's security system and getting in without notice, while he started to think that he should have stayed in the car Gru cheered him up. Dru got distracted with the Evil Bratt toys (as he once owned one) and the gum; which got them caught when he took one and put it in his mouth without knowing its ability - the gum soon became extremely large and started to come out from Dru's nose and mouth. Gru used the gum that was deflating inside Dru to spit it out and trap Bratt to the wall. Lucy had spotted the twins when they were leaving for the heist earlier and came to their rescue in Dru's red helicopter.
Dru learned Gru's true reasons for their mission and he felt betrayed; when they got back to their father's lair, the twins fought, and Gru told his brother that he has no skill and is far too clumsy to be a real villain and leaves. After Gru found Lucy tied up and that Bratt had stole the diamond back and kidnapped the girls, he rushes to Dru's room where Dru is eating ice cream to drown away his sorrow. But upon learning that his nieces have been snatched by Bratt, Dru immediately drops his anger and he, Gru and Lucy board his hovercraft and fly to Hollywood to rescue the girls.
Once there Dru recognized the lay of Bratt's plan from one of the Evil Bratt episodes he watched in his youth and knew that he was reenacting it. While Lucy went to save the girls, the twins made their way to the giant Bratt robot. Dru found his way into it and managed to disconnect it, before its laser could reach Gru. When the giant robot came undone Gru feared that Dru was still inside and had died, but right after Gru had finally defeated Bratt and send him strait to the AVL Dru approached his twin and revealed to be safe and unharmed. The reunited family takes part in a group hug. The Minions fall right-out of the sky and return to work for Gru again.
Dru later went to live with Gru and his family in their house and had a pillow fight with him and the Minions on the night before Gru and Lucy got back to their jobs. Once he and the Minions were tucked in bed and Gru and Lucy went to do the same, they hijacked Gru's Airship and replaced Gru's emblem with a D. Gru and Lucy catch them in the act as Dru goes to "continue the family tradition" with all the Minions , since he is Gru's brother he and Lucy give them a five-minute headstart before they go after them.
Unlike Gru, Dru is shown to be a lot more happier and a bit hipper, hyper and full of energy when excited, he is also shown to be a bit clumsy and careless; which is why his father refused to teach him how to be a villain and had to turn to his brother for lessons. He is also shown to panic and overact when he is scared, as well as being disobedient, childish and sensitive. He is also extremely funny, friendly, and witty.
- Although being a villain, he is concerned about his family as much as Gru.
- Dru is revealed as a Evil Bratt fan, as he once owned an Evil Bratt action figure and had watched the episode that Bratt drew his idea from.