Matthew B. Ketchum

Founder of MK Ultra Man

Tokyo, Japan

About Matthew

Matthew B. Ketchum is a Japanese entrepreneur, musician, and author. He is the founder of MK Ultra Man, a popular YouTube channel and podcast. Matthew has lived in Japan for several years and has written about his experiences in his book. He is known for his passion for music, entrepreneurship, and community development.

Associated Podcasts

Unpacking Japan

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Recent Appearances

What can we ACTUALLY do with abandoned Japanese buildings?

Unpacking Japan•Sep 30, 2025•1:26:05•guest