Lieutenant Mattias

Lieutenant Mattias is a character in the 2019 animated feature film, Frozen II.

Background
Mattias was once a member of the Arendelle guard, during the reign of King Runeard (King Agnarr's father and the paternal grandfather of Queen Elsa and Princess Anna). At some point, Mattias and his men became trapped in the Enchanted Forest. He continued to serve under Agnarr as his guard. After the great battle, he has been trapped in the forest for over 30 years and had no idea that Agnarr made it out alive.

He believes the battle was a cruel attack by the Northuldra, who betrayed the goodwill of the people of Arendelle. He also is under the impression that magic is bad and that Arendellians don't do magic, and is thus shocked to see Elsa using magic.

His portrait hangs within the library of Arendelle Castle, second on the right.

Voice
Lieutenant Mattias's voice actor, Sterling K. Brown, stated regarding the presence of the character in Frozen II that "I love that there’s a character of color in this world of Arendelle. I think for such a long time black folks have had to wonder, 'what would it be like to have someone like me in this show, what would it be like to be Superman or Batman.' And then you get 'Black Panther.' Now, we have this character, Lieutenant Mattias, who I get the chance to vocalize, and I have a little action figure and Legos, and I'm like, 'Ah, it's really happening.'" He also described the recording process, stating "You'll go in and record for four or five hours, and then you'll have a month break, and then you'll go in and record again, and they're constantly changing the script."