Mattias (Frozen II)

Lieutenant Destin Mattias's central role in Frozen II begins when Elsa, Anna, Olaf, Kristoff, and Sven enter the misty borders of the Enchanted Forest. Trapped for thirty-four years alongside his small troop of Arendellian soldiers and the native Northuldra tribe, Mattias initially approaches the newcomers with caution. He is stunned to witness Elsa's ice magic and listens with captivated emotion to Olaf's dramatic recap of the events of the original film. When Anna later determines that breaking King Runeard's dam is the only way to free the forest, Mattias initially resists out of fear that the unleashed floodwaters will destroy Arendelle. However, after Anna reveals the truth about King Runeard's betrayal of the Northuldra and Elsa's sacrifice, Mattias realizes where true loyalty lies. He orders his men to bang their swords against their metal shields to lure the Earth Giants to the dam, helping smash the structure. After rescuing Anna from the collapsing dam, Mattias watches the mist dissipate, returns home to Arendelle, earns a promotion to General from Queen Anna, and reunites with his beloved Halima.

Lieutenant Mattias represents honor, moral growth, and the willingness to accept painful truths over blind allegiance to legacy. Having served as Prince Agnarr's official guard and father figure, Mattias held deep love for Arendelle's royal lineage while remaining unaware that King Runeard provoked the war with the Northuldra. When presented with evidence of Runeard's deception by Princess Anna, Mattias becomes the first Arendellian soldier to formally reject Runeard's corrupted past. His choice to aid in destroying the dam proves that true loyalty means upholding justice rather than protecting a lie. His narrative arc bridges the reign of King Runeard with Queen Anna's new era of peace and unity between Arendelle and the Northuldra.

Mattias is depicted as a tall, middle-aged African-Scandinavian man with greying hair, prominent dark eyebrows, and a groomed mustache. His aesthetic balances traditional military dress with the subtle wear of thirty-four years spent surviving in the wilderness. He wears a dark green Arendellian military jacket featuring gold epaulets, ornate trim, and structured shoulders, paired with high-collared undergarments. His lower attire consists of light grey trousers tucked into dark leather boots, secured by leather belts and a scabbard strap. In combat, Mattias wields a standard Arendellian steel sword and a heavy metallic shield decorated with the kingdom's official crest, which he also uses rhythmically to draw the attention of the Earth Giants.