Lyder Ellefsen Alsaker is one of the first members og Mattisfilm, he was born on the 11th of may in 2009 and is old. He is known for roles like Lenny in (Maxi Manus 2023), Kevin in (Oppdrag Terrorist 2024) and Leander (The last withdrawal 2025) He is also behined the scenes as a writer sometimes.