He has been confirmed to replace Oh Dal Soo following his recent controversy. Park Ho San is set to play Park Sang Hoon, a jolly character despite being the eldest son of three.

SEE ALSO: Former 'I-Land 2' contestant Lingling set to become the first K-Pop idol of Malaysian nationality soon with her debut

Previously, Park Ho San acted in 'Prison Playbook' and received much attention for his exceptional acting skills as Kang Chul Doo.

On their decision to cast Park Ho San, 'My Mister' staff commented, "Playing dynamic roles in theatre, film, and dramas, actor Park Ho San has demonstrated a solid performance throughout his career and knows how to humorously present himself with great detail."

Meanwhile, 'My Mister' is scheduled to air on March 21 and tells the story of three brothers and a woman (IU) who has faced many hardships in life.