The roles of Dzohkhar and Tamerlan Tsarnaev have been cast for the upcoming film "Patriots Day."
Former Nickelodeon star Alex Wolff, 18, will portray Dzhokhar Tsarnaev and newcomer Themo Melikidze will play Tamerlan Tsarnaev in the film.
Wolff is best known for his role as himself in the Nickelodeon series and movie "The Naked Brothers Band."
He has previously appeared in HBO's "In Treatment" and "My Big Fat Greek Wedding 2."
Wolff and Melikidze will join Mark Walhberg, Kevin Bacon, John Goodman, J.K. Simmons, Michelle Monaghan, Vincent Curatola, James Colby, Jimmy O. Yang, and Michael Beach in the film about the 2013 Boston Marathon bombings and manhunt for the Tsarnaev brothers.
The film is set to open in Boston, New York, and Los Angeles on December 21.