- Roj's maternal grandfather, Rudolf Voll, was a known anti-Nazi who fled Germany in 1936 to escape prosecution.
- Roj's mother is a German who was born and raised in Tokyo, Japan.
- Roj is also known for his performance as "Roji Sensei" and "Somchai Sudlor", two host characters of Roji Sensei (Channel) on YouTube and Tik-Tok.
- Roj's maternal grandfather, Rudolf Voll, was a known anti-Nazi who fled Germany in 1936 due to the risk of being prosecuted.
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