Rajkumar began his career in the early 2010s, often appearing in uncredited roles or brief cameos. His first notable recognition came with , where he played a minor but impactful role alongside Sasikumar. This was followed by small yet memorable parts in films like "Kumki" (2012) and "Raja Rani" (2013) , where he began to be noticed by casting directors for his ability to blend into ensemble casts.
As of late 2025, Rajkumar is no longer just “that familiar face” in Tamil cinema. With six releases in two years—including a solo lead and major multi-starrers—he has transformed into a dependable character artist. His filmography now reads like a map of contemporary Tamil mainstream and parallel cinema, from commercial masala to hard-hitting drama. Rajkumar began his career in the early 2010s,
The mid-2010s saw him secure more substantial supporting turns. and "Kabali" (2016) gave him exposure to larger audiences, though it was the 2018 action-drama "Naan Sirithal" that gave him his first real breakout as a comedic relief with emotional depth. As of late 2025, Rajkumar is no longer