Johannes Brotherus (born 25 October 1997 in Helsinki) is a Finnish actor and musician. As an actor, he is best known for starring in the 2013 Pirjo Honkasalo film Concrete Night. He started playing violin at the age of three, and in addition to his acting career, also plays in the band Brotherus Brothers with his two brothers. He is a member of the pop band Kuumaa.
Brotherus' father is , ex-keyboard player for Stratovarius. His mother is a choreographer, . He is the second child of four siblings, Robert Brotherus, actor , and actress-musician Elsa Brotherus.