Kimura's father and a seasoned warrior seeking revenge for his wife's death .
"Twin" British assassins tasked with guarding a briefcase and the son of a crime lord . Lemon is notably obsessed with Thomas the Tank Engine .
A reluctant operative trying to practice mindfulness while being a "bad luck magnet" .
The train is packed with eccentric killers, each with a unique gimmick:
Deadly assassins seeking vengeance and using rare boomslang venom, respectively . 🔑 Key Plot Points & Spoilers
A ruthless Russian crime lord who orchestrated the entire train ride as a trap .