Alexander Scott "Alex" Mixter is an American videographer, technician and musician based in Saginaw, Michigan, best known for his works with Mars Argo. He is the younger brother of Titanic Sinclair and a former friend of Poppy's.
- He appeared as an extra driving a van that Poppy gets into in the "Lowlife" music video.
- On December 29th, 2019, he did a Reddit "AMA" on both Poppy and Mars Argo in defense of Titanic Sinclair.
- His Reddit account was deleted shortly after the AMA.
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