Vikram's original name is "John Kennedy". Yes, and his nick is "Kenny" - he loves to be called like that by his friends, he said that in an interview.
He said his Mom's name is "Rajeshwari" in the same interview. I think his parents are converted Christians.
Another thing you guys may not know - Actor Thyagarajan and Vikram's family are related. Prashant and Vikram are first or second cousins. A long time ago, I've read that when Prashant was at his peak, and when Vikram was trying to establish himself, he got no support from Prashant's family and that they would completely ignore Vikram's family. Ippo appadiye scene ulta - I'm happy - I like Vikram a lot, he's a cutie!
Except he (and Vijay) jollufy Trisha a lot, even off screen. 🤢