Corey Michael Mixter,[2] known professionally under his pseudonym Titanic Sinclair, is an American director, producer, singer-songwriter, and internet personality.

He was previously one-half of the indie pop duo Mars Argo and a former creative collaborator of American singer and YouTube personality Poppy.

[3] From 2009 to 2014, Sinclair directed and wrote the video content for the Mars Argo internet series Computer Show on YouTube.

In June 2019, Sinclair directed the music video for rapper Vic Mensa's song "Camp America".

[9] An example of this behavior is an instance in which Poppy alleges Sinclair was going to hang himself with one of her personal belongings and had also messaged fans details about his suicidal attempts for attention.