I've heard Jin Se-yeon is better in Age of Feeling then she was in Gaksital, so maybe she won't be so bad, though I can't see her as a badass spy.

She's like a 'replacement actress'.

She seems like a nice girl, easy going and cute with a clean image. And somehow becoming SBS & KBS sweetheart. Acting wise she is not that bad,serviceable but forgetable. I think as time goes by, she will become one of the leading lady in K-entertainment industry.

Such a lucky girl, already act alongside some of the hotties, Joo Ji Hoon, Choi Jin Hyuk, Joo Won, Kim Hyun Joong and now Lee Jong Suk!

So sorry to hear that. Back to that old fashioned activity called Reading then.

I saw her in Gaksital. That was enough to keep me away from her for say at least 10-20 years, giving her time to learn her craft.

It will be fun to watch her play a different role

I'll be honest and say that I don't know who Jin Se-yeon is ..... I've never seen her so I certainly can't comment on her acting talent.

However, having just found out that she was in Gaksital and Age of Feeling (both of which I didn't watch), I'm going to assume being involved in intense stories are within her comfort zone.

If this drama is going to amp up the intensity with the whole spy angle, then perhaps casting her is completely appropriate.

We'll find out!

Not really that excited abt this casting news despite me being a JSY fan, my apprehension comes more with the plot itself and my lack of interest in LJS himself.

I've only seen JSY in Age and she's doing a fine job in it, in fact she's doing more than the lead female for me. It probably helps that she is playing an endearing character and it certainly looks like it's within her comfort zone to play it naturally.

I would definitely give her s chance despite my aversion to LJS and medical dramas. I would go and even say that she is an improvement to PMY. At least they casted someone who is closer to the lead's age, and as long as it is someone not named Park shin hye or suzy then I think it helps well in the diversity and cultivating of actors talent within the k-ent industry.

she is nice and talented girl
but i don't know why i don't like her at all :((

This girl keeps getting work and i wonder why. It's not like she's that marketable to begin with. smh

Every time news for Doctor Stranger comes out, I never can tell if it's a good or bad. I literally feel nothing for this show. Is that a good thing?

Its not often I hear a lead actress gets cast into another drama while still filming her current drama. does this happen a lot? I swear this it happens to Jin Se-yeon.

wow lucky her. She is like the no1 replacement choice when a KBS or SBS drama lost it's leading actress.

NOOO why??She is awful. Couldn't they have gotten park se young instead to compensate for the lack of romance in school 2013?

Looking back now, yeah... she was pretty darn weak in Gaksital. Gizzles. Buuuutt, I am glad it's not Park Min-young. I'd rather have Jin Se-yeon pairing with Lee Jong-seuk than Park. Their might be SOME chemistry, at least.

Also, what have you been up to drama-wise, KIM SO-EUN?? :(

I actually haven't seen her in anything other than Gaksital and she was awful. Like really bad. HCA really over shadowed her so I can't see this being a better option than PMY. I thought they'd go a better actress, and if not, then at least a bigger name.

Oh well, LJS already has me stepping miles away even if admittedly, I do find the premise rather intriguing. At least they have the cast in now. Which is saying a lot in comparison to Golden Cross. Don't even know who they're courting after KJH bowed out. It's also airing around the same time in April.

Lee Jong-seok, I love you; Park Hae-jin, maybe when you are the lead next time. Medical + Jin Se-yeon = I'm out. She truly was awful in Gaksital, and I still don't much care for her in Age of Feeling - I fail to see the improvement that others claim she has made.

It was depressing trying to imagine a replacement for her though. Somehow there are tonnes of talented bright young actors, and no one to pair them up with. Maybe the reason behind the new onslaught of noona romances is the lack of skilled young actresses?

Lee Jong-seok, I love you; Park Hae-jin, maybe when you get the lead next time. Medical + Jin Se-yeon = I'm out. She truly was awful in Gaksital, and I still don't much care for her in Age of Feeling - I fail to see the improvement that others claim she has made.

It was depressing trying to imagine a replacement for her though. Somehow there are tonnes of talented bright young actors, and no one to pair them up with. Maybe the reason behind the new onslaught of noona romances is the lack of skilled young actresses?

I know everyone loves Lee Jong Suk and all, but tbh I can't see how his acting is any better than Jin Se Yeon's.

I will give this a try cause I love Kang Sora and the writer is good. But this honestly sounds like a mess in the making.

Why???? :(

My first reaction was poor Lee Jong Seok...

Recently you were diagnosed with swine flu and now Jin Se-Yeon is the actress that was selected to be your leading lady in Doctor Stranger.

Your career was really taking off and you were blessed to work with good/talented actors and have consecutive back-to-back projects.

Unfortunately, this drama project will be at a disadvantage no matter how talented you are. To bad you signed up for this drama before the leading lady was officially cast. Now you are stuck with the untalented Jin Se-Yeon as your female lead.

What a curse having to act with someone devoid of talent - in this case - the actress is Jin Se-Yeon.

Oh my, all the hate for this poor girl. Whatever, I like her, she´s really cute.

Ugh, way to throw a wet blanket on this drama from the get go. I'll watch for my love of Lee Jong Seok, but I can't understand why Kdrama casting directors keep shoving JSY down our throats - YUCK!

I rather someone else. Actually I don't like any of the female actresses chosen to play in this drama. Not even kang sora. But with that said, who exactly is the lead female? Her or Kang sora BC I read it on another article and it said that Kang sora is the lead girl so jsy is supporting? Oh well I don't even like any of them. I like jong seok but don't like plot or the girls.

Well it could be me, but doesn't she look a little too young to play a doctor? I mean, I don't know how old she actually is but she looks like in her teens.

As for the acting. Unfortunately she doesn't do anything for me. She is cute and a sweetheart but I'm not really into her acting. I watched Gaksital and she really didn't shine. She got better in Age of Feeling but isn't that great to me either.

But on the other side I'm not even that convinced of LJS's acting. And doesn't he look too young (for a doc) as well? Anyway I hope that Hae-Jin and So-Ra do a great job and maybe those other two suprise me :D

Wow, the reception to this news is a lot worse than I thought it would be.

I mean, Jin Se Yeon was definitely not the best actress in Gaksital, but she's definitely improved in Age of Feeling from what I've seen. The thing is, if you don't give young actresses like her chances to really challenge themselves and feel the pressure from having a lead role, then will they ever improve?

Yes, there are other actresses I wish had gotten this role instead of Jin Se Yeon, but I'm not going to write off this drama entirely just because of her.

Remember, almost all of our favourite leading ladies were once not-very-good rookies themselves.

I am really bored with this actress. Her performance does NOTHING for me. I wish they had gone for someone else to play as lead female.

Let say that she also has the misfortune to act alongside stronger actors than her (Joo Won, Joo Ji Hoon, Park Ki Woong, Ji Chang Wook.....). They all overshadowed her (not that it is difficult)

Funnily enough though is that in both "Gaksital" and "Five Fingers", they shoved her character to the side once she was no longer useful to the plot.

The reason why she's able to shine in "Age of Feeling" is probably because KHJ is no better acting-wise.

UNBELIIEEEEEVABLE...... I was really forward to this because of Lee Jongsuk, Park Haejin, and Kang Sora. But I am so tired of Jin Seyeon. So disappointed. She was the weakest link in Gaksital and I don't like her Inspiring Generation. She didn't bring much to the table in Five Fingers either. How frustrating. I'll be reading recaps before I decide if I should watch it. Sawrry Lee Jongsuk. SAWWRRYYY~

Really hope she does well for everyone's sake. I'll keep an eye on this drama but I'm not a fan of her or LJS so I'm not going to break my back trying to watch and keep up with this.

Meh.

At least there's Lee Jong-suk and Park Hae-jin... Kang So-ra's good too. I truly hope Jin Se-yeon has improved. I couldn't be bothered with AoF... but we'll see if this is worth watching.

yeah.

She's acting as an anesthesiologist?? Yea, i'll believe that...sure, why not? Not that she looks like a 18 year old or anything.

Yeesh.

Poor Jin Se-yeon. The amount of negativity aimed towards her is startling. I only saw her in Gaksital and I thought she did a decent job. Yeah, she's rather forgettable...but still, that doesn't mean she shouldn't get projects to improve her craft. Who knows, maybe this can be her breakthrough role.

I'm more worried about the storyline. It sounds so strange, especially with the doppelganger mixed in with first love storyline. That puts me off and I can see this kind of drama not doing so well in terms of ratings.

ugh....WHY?.....I cringed so badly when I saw this. I don't usually give a crap about the female lead roles because not a lot of the Korean actresses have my interest but JSY is one of the few that I do NOT feel anything when she's acting and it irritates me really badly. when the girl acts it's like she's just reading off the script without any emotions. or when I expect something more, she doesn't deliver. *sigh* why do people who can't act to save their lives keep getting lead roles?. Kang Sora is a much better choice and yet she wasn't cast as lead. aiyaiyai. what is drama land trying to say with all these actresses who have pretty faces but can't act for crap.

Well I wasn't watching this either way...good luck

This character will have to be a bit more distinctive just so the doppelgangers will be different at least because goodness knows somehow all her characters seem the same until now. I'm watching AoF and I totally still see Mok Dan which seems impossible but there you go LOL. She's better now but than Gakistal but...I'm only watching for all the awesome actors and (shipping) Gaya and Leader Mo

One thing I wonder is why these up and comers (actresses) are hired for their looks at all. It would seem that the demographics watching the major dramas (at least the rom com's and melos) would be primarily female. So one could surmise that it is only the male part where looks would play more heavily in the casting choices. Obviously, the female part couldn't be a fug but it would seem time could be spent more on whether the girl can act worth a darn, cause that would connect with the demographic more and ya know have a better show and stuff. Yes, it makes sense that they often hire idols due to a previously established brand but without said branding I am at a loss as to how they seemingly see head shot, cast, and ask questions on how they emote on screen only once the cameras roll. It's almost like the casting directors are all guys or something?!?

I dont know why people keep think negative for her or another actress, if you diont like, so dont watch it. the reason when i go for some drama its the story even I do not like or didn know the actor or actress if the story sounds good I will in (it happen when I saw Heartless City, i dont know whos JKH but I like the story, and now I become his fans). but if I do not like the story i was looking for whos the actor, if he/she was may idol I will in even the stories awful or I dont like the other cast.
For jin Se Yeon she still young and she always trained her self to become more better. She went to college and take a role in musical drama 'Closer' so, she didnt just stand and wait. I think its not about her acting, but it just because most of all get jealous and want our fave actress take the role. if I want i could say joo Won is more better than Lee jong Suk why not him? but i dont want to say that because i think LJS have own charm and hes a good actor too, even Im not his fans but i really appreciate what he does in the past drama.

I don't think Jin Se Yeon was as bad in Gaksital as many here make her out to be. I think it has also got to do with the way Mok Dan the character was written. Perhaps a more experienced or better actress could have made us less frustrated with Mok Dan by adding more layers. Otherwise, Mok Dan was just a single-minded, simple female character.

I have seen a little of JSY in My Daughter The Flower and Age of Feeling, While her acting is decent, I agree that she is still not good enough to make greater distinction to the characters she plays.

Then again, not many actress or actors can do that. Joo Won is my bias and to me, he is one who does it successfully in each of his dramas. There are probably others but I doubt many especially in their 20s can achieve this.

Acting aside, at the moment, I cannot imagine JSY and LJS together. I can't put a finger to it. It's like JSY need a more mature man and LJS needs a stronger woman? Too much cuteness? But who knows, sometimes the most unpredictable thing happens.

ugh. shes a tiny bit better in Age of Feeling than she was in Gaksital, thank God. But, she's still not good enough to attract me to any of her projects. might have to miss this one.

I am a big Jin Se Yeon fan, so to read all these negative comments is really disheartening. I admit she is not the best actress, but she is improving in her craft. She doesn't deserves comments like 'devoid of talent', 'cursed', or even 'yuck'. JSY is still young, so she needs all the experience she can get. To say that she shouldn't be in a project because she doesn't 'deserves' it seems too much. She is an actress after all, so she needs to be in different things. Whether or not JSY is a good actress is up to people's opinions. She is deserving and worthy as much as the next actress.

i actually like Jin Se Yeon way better than Kang Sora even though her acting is mediocre
Jin Se Yeon is really young, a 94-er but yet has already been a female lead in few dramas, you don't see this happen regularly
give her chance to improve her acting

i don't know what's so special about this girl....