<P> In the film , Gru teams up with his long lost twin brother Dru in order to defeat a new enemy named Balthazar Bratt , a 1980s child actor who grows up to become a villain . Steve Carell , Miranda Cosgrove and Dana Gaier reprise their roles of Gru , Margo and Edith from the first two films , and Julie Andrews returns as Marlena , Gru 's mother from Despicable Me ( 2010 ) . Kristen Wiig and Steve Coogan return from Despicable Me 2 and Trey Parker , Jenny Slate and Nev Scharrel ( replacing Elsie Fisher as Agnes ) join the cast . Russell Brand does not reprise his role as Dr. Nefario from the first two installments . </P>
<P> In the film , Gru teams up with his long lost twin brother Dru in order to defeat a new enemy named Balthazar Bratt , a 1980s child actor who grows up to become a villain . Steve Carell , Miranda Cosgrove and Dana Gaier reprise their roles of Gru , Margo and Edith from the first two films , and Julie Andrews returns as Marlena , Gru 's mother from Despicable Me ( 2010 ) . Kristen Wiig and Steve Coogan return from Despicable Me 2 and Trey Parker , Jenny Slate and Nev Scharrel ( replacing Elsie Fisher as Agnes ) join the cast . Russell Brand does not reprise his role as Dr. Nefario from the first two installments . </P>
who is the new villain in despicable me 3
who is the new villain in despicable me 3
Balthazar Bratt
Balthazar Bratt