His father as well as his brother Marcel is a great writer and they were also his inspirations. On 7th of July 2012, Louis got married for the second time in his life and that was with Nancy Strang.
Since then, he has performed both on Broadway, starring in Observe the Sons of Ulster Marching Towards the Somme; in numerous off-Broadway productions; and in comedy films such as Charlie's Angels: Full Throttle, The Baxter, Romy and Michelle's High School Reunion, Broken Hearts Club, and Zoolander.
while his cousin, Justin, is an actor and screenwriter.
He is the nephew of novelist Alexander Theroux and writer Peter Theroux.
They have already welcomed three children and all three are sons and their names are Fredrick, Albert and Walter.
Louis gained his primary education from Allfarthing Primary School and then he joined Westminster School.