Who is the character Gru's twin brother in "Despicable Me 3"?

Dru Gru is one of the main characters in Despicable Me 3 and the twin brother of Felonius Gru (often referred to by his surname Gru). Dru is son of Robert and Marlena Gru, Lucy Wilde's brother-in-law, and the adoptive paternal uncle of Margo, Edith, and Agnes. 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 hair, inherited from his father. When Dru and Gru were born, their parents divorced. Dru's father, Robert became his guardian, who was a legendary supervillain and was unsatisfied with his son Dru, who seems to have no talent of being a villain due to his clumsiness. Unlike Gru, Dru is shown to be happier and a bit hipper, hyper and full of energy when excited. He is also shown to panic and overreact when he is scared, as well as disobedient and childish. 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 Evil Bratt action figure and had watched the episode that Bratt drew his idea.