R. Muthuraman
Muthuraman's son Karthik is also a popular Tamil actor and politician , and his grandson Gautham Karthik is also an actor who made his debut in "Kadal" ( 2013 ) . 
<triplet> Karthik <subj> Gautham Karthik <obj> child <triplet> Kadal <subj> Gautham Karthik <obj> cast member