In Disney’s Frozen II, which character is voiced by Sterling K. Brown?

In Disney’s Frozen II, Sterling K. Brown voices Lieutenant Mattias.

Mattias is an Arendellian lieutenant who has been trapped in the Enchanted Forest with other soldiers for 34 years. Elsa, Anna, Kristoff, Olaf, and Sven meet him after entering the forest to investigate the magical disturbances threatening Arendelle.

The character serves as a link between the present-day story and the historical conflict between Arendelle and the Northuldra. Mattias eventually learns that the soldiers’ actions helped create the long-standing division between the two groups, while the film also reveals the role of King Runeard in the original confrontation.

Sterling K. Brown is an American actor known for television, film, and voice work. In Frozen II, his performance gives Mattias a serious but sympathetic presence. Mattias is distinct from Runeard, the former king whose decisions caused the central historical conflict.