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{{Infobox person| name = Halfdan Keller Justesen | birth_date = {{Birth year and age|1992}}| years_active = 1998–present|image=Halfdan portrait (born 19922017) has larped since 1998, and introduced his parents to larp soon thereafterby Nadina Dobrowolska. He is a trained product designer and currently lives in Copenhagen, Denmark. He organised his first larp in 2018 in collaboration with jpg|caption=Portait of Halfdan (2017) by Nadina Dobrowolska|organization=[[Avalon Larp Studio, which he is now a member of.]]}}

==Personal Life==Ever '''Halfdan Keller Justesen''' (born 1992) has larped since he was gifted 1998, and introduced his first boffer sword on his 6th birthdayparents to larp soon thereafter. He is a trained product designer and currently lives in Copenhagen, Denmark. Since 2016, Halfdan har has been a larper. After larping with his parents crew member for several years, he started playing more on his ownover 30 international events. He has worked as a helper/NPC and NPC coordinator at multiple larps, and also acted as the NPC coordinator alongside organised his organiser duties at first larp in 2018 in collaboration with [[Avalon (2018)Larp Studio]], the fist larp he organisedand joined that collective shortly after.==Larp Productions==

Halfdan studies sustainable design engineering at Aalborg University in Copenhagen, and is currently working on his master's degree.*[[Avalon]] (2018)*[[Tale of the North Wind]] (2019)*Midwinter (2020)*The Last Song (2022)==Events==*Faerie (2023)Avalon *[https://gothic.avalonlarp.studio Gothic] (20182023), organiser - NPC coordinator, player recruitment and marketing