Mahanadhi Shankar, formerly known as Shankar, is a Tollywood actor. He is mostly known for his villainous characters. He played the role of a wicked jail warden Thulukanam who created problems for Kamal Hassan in his debut movie Mahanadi. After such a brilliant performance, he got to be known as Mahanadhi Shankar in the industry. Since then he has been doing many villainous roles as well as comic roles in various movies.

His filmography includes Mahanadi (1994), Dheena (2001), Asathal (2001), Kusthi (2006), Aarumugam (2009), Brahma Deva (2009), Vedappan (2009), Tamil Padam (2010), Kaadhal Alla Adhaiyum Thaandi (2011), Parkkalam Pazhagalam (2011), Naam Oruvar (2011), Guindy (2011), Alaiyodu Vilaiyaadu (2012), Vibunan (2012) Oru Kal Oru Kannadi (2012), Eli (2015), Vindhai (2015) and an upcoming film Sokku Sundaram in 2017.

He has also acted in a Malayalam movie named Anwar in 2010 and a Telegu movie named Bet in 2011. He played an important hero character in Sokku Sundaram supported by 5 heroines. He has also participated in the Tamil celebrity game show Adhu Idhu Edhu aired on channel Vijay TV of Star TV.