According to express.co.uk, Dominique has lived a private life and very little is known about him. At the end of The Serpent, it is revealed the real Dominique Renelleau lives in France today. He is married with grown-up children and remains a keen traveller.
Dominique was a young french traveller when he met Alain in Thailand.
At the time, Sobhraj was going by the name Alain Gautier and his wife Marie-Andrée Leclerc (Jenna Coleman) by Monique.
In The Serpent, Dominque and Alain are portrayed as meeting in Chiang Mai, Thailand.