Wearing a doctor's coat must be very appealing for k-drama actors. Some actors have donned that white coat more than once.

Lee Jong Suk is currently considering his second doctor role, playing a brilliant neurosurgeon who suffers from mental illness. He previously played a brilliant surgeon who was forcibly taken to North Korea as a child in the drama "Dr. Stranger."

The model-turned actor is being courted for this role because he did so well in his last medical drama.

Joo Won is also playing a doctor for the second time. He previously played a brilliant surgeon with Asperger's Syndrome in the drama "Good Doctor" and now he is playing a brilliant surgeon with money problems on "Yong Pal."

Park Geun Hyung also played a doctor once. He might win the award for playing the funniest k-drama obstetrician when he appeared in "I Do I Do." His character meets Kim Sun Ah on a date but after she rejects him for and has a baby with someone else, still helps her through her pregnancy. He also played a doctor in "Syndrome."

Lee Sun Gyun of "Pasta" fame also played a doctor twice in "White Tower" and "Golden Time."

And k-drama doctor characters rarely have it easy. So many k-drama doctor characters have personal or psychological obstacles to overcome. In "Blood" Ahn Jae Hyun was a pretty good doctor and he had learned to mostly deal with his cravings for human blood. But keeping the secret that you are a vampire can be difficult, especially in a hospital setting.

Before his body was taken over by someone else, Gong Yoo played a doctor about to be married in "Big." Fortunately, his medical skills survived the supernatural transformation. And he did look good in that white coat.

Sometimes the doctors just have to learn to peaceably co-exist. Choi Jin Hyuk and Song Ji Hyo played doctors who were married once and then had to work together in "Emergency Doctor." At the start of the drama, Choi's character had little respect for his ex-wife but he soon learns that she has the skills it takes to be an excellent doctor. And he is still in love with her.

As k-dramas increasingly explore mental health issues, there are also more medical characters that are psychologists. Hwang Jung Eum was a good psychologist when she attempted to cure Ji Sung of his dissociative disorder in "Kill Me Heal Me." She also played a doctor in 'Golden Time." Joo Jin Mo was a bad psychiatrist in "Mask," because he tried to convince Joo Ji Hoon's character that he was delusional when he wasn't.

Who was your favorite k-drama doctor? Did we miss anyone?