- Second member of the popular Salvador showbiz clan in the Philippines to die in a vehicular accident, His uncle Jon Hernandez also died in a vehicular accident on November 7, 1993. Sison's paternal grandmother is Tess Salvador, a half-sister of Ross Rival who is the father of Hernandez.
- Andrei Sison passed away at the age of 17 following a severe vehicular accident in Quezon City on March 24, 2023. .
- Belong to the prominent Salvador showbiz clan in the Philippines. Salvador patriarch Lou Salvador is his great grandfather.
- His mother Ana Marie Liza Lim is half sister of Karla Estrada so this make him a cousin of Daniel Padilla.
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