Maaike Haas is a Sim who resides in Windenburg, the town shipped with The Sims 4: Get Together. She is a member of the Avant Gardes. It is possible that she has Dutch ancestry based upon her name and surname. She is roommates with Ulrike Faust
Maaike has brown hair but black eyebrows, so it's possible that she dyed either her hair or her eyebrows.