SEE ALSO: Lee Jong Suk, Kang So Ra, Park Hae Jin, and more attend their first script reading for 'Doctor Stranger'

Lee Jong Suk went above and beyond to perfect his role as a genius doctor by studying medical terminology and practices. He also looked the part with his white coat and intellectual expressions.

A rep commented, "Lee Jong Suk perfectly understood and acted out his role as the North Korean genius doctor Park Hoon and impressed the staff with the sweat and passion he put into it on set... As much as you can feel it from one set of photos, please show a lot of interest and anticipation for Lee Jong Suk's charismatic transformation into a genius doctor."

'Doctor Stranger' will be directed by 'City Hunter' and 'The Sun of My Master's PD Jin Hyuk and will portray the story of a genius North Korean defector, Dr. Park Hoon (Lee Jong Suk), who enters Korea's top hospital and adjusts to life as an outsider in his workplace.

'Doctor Stranger' will premiere following 'God's Gift -14 Days' on April 28!