Bogummy could do it.

oh no!! i was really looking forward to seeing him!! shoot, i hope no one else decides to leave... i'm curious to see who's gonna take his place tho

His leaving the project is unfortunate news. However, national duty calls so the situation is understandable.

tineybeanie's suggestions of Park Seo-joon or Ryu Joon-ryeol as cast possibilities could certainly work.

Does this mean we wont get to see him until he comes back from the military? NOOOOOOO!!!! Don't do this to me!

Oh wow, I really hope there aren't any more drop outs. As for the suggestion of Park Seo Joon being considered I'm all for it on the basis that I just love PSJ and think he's a good actor. That being said though, I haven't seen him in anything dark before so I have no judgment if he'd be able to do a drama like Bad Guys justice.

I just googled Ryu Joon Yeol and his face! He definitely has the Bad Guys type of face (this is a compliment, not an insult I promise!). There's an edginess to his features and in his eyes in the pics I saw that would definitely, at the least, fit the aesthetics of the show.

Regardless, I just want my baddies :).

?☹️?????

I feel bad that KHN had to dropout. I really wanted to see him in this drama. But alas. Hopefully the production will find a replacement in time and who will be perfect for the role.

I'm sad that Haneul won't be able to be in the series, but I love the idea of with Park Seo Joon and Ryu Joon Yeol. Mainly Ryu Joon Yeol because I miss him and need him in another drama right now.

Omo, WAE!?! *goes back to actually read the article*

Yikes! Aw man, I would've loved to see Kang Haneul in this! ANOTHER one that got away~ sadness.

Welp, since @tineybeanie mentioned it, I wouldn't mind either Park Seo-joon or Ryu Joon-yeol to be part of this. Nope. No problem w/ that. Ha, I bounce back fast. Can't help it, so many talented and charming oppas!

ryu joon yeol woul dbe perfect. i really liked his role in KING.

I am disappointed but duty calls. Wishing Kang Hanuel the best as he serves his military duty.

The first actors that popped into my mind were Joo Ji-hoon (Mask) and Kim Jae-wook (Voice). But after watching Dong Ha as Jung Hyun-soo in Suspicious Partner, I would love to see him cast in this part.

I was wondering how it was possible given his enlistment date, so this isn't surprising.

I am thinking of Lee Won Geun but I heard he also had another drama coming up

Man, what a bummer. Really wanted to see Kang Haneul in a new, strong role.

Wouldn’t mind seeing Park Seo Joon on my screen again though. He excels in rom-coms so I would like to see him branch out and tackle a serious role in a dark drama.

I wasn't overly thrilled by the last cast announcement but, still, a good base there. Which seems to be falling away a bit. Still no news on Park Sung-woong?

I am not family with Kang Haneul, but what about Park Hyungsik? Is he available? He would be perfect! And yes, is Park Sung Woong still attached to the project? I would love to see him again! He was so good in Man x Man! I need to watch the first Bad Guy...on my list!

how come every actor is going to the military this year itself.. except for the ones who were forced to return on account of health issues.. and one sweetheart who is in hospital... that just leave two guys in the scene.. LJS and Bogumy ( remainign ones, one is getting married, one has vowed to never do romance if not saguek, one won't come back to dramaland after the last failure against kill me heal me, .. that's it.. no other actor left i guess)

The Lord giveth and taketh away.

When they announced Ji Soo was cast to replace someone who had to drop out, I immediately thought it was Kang Ha Neul. But it wasn't. A few days later, my premonition comes true. Yikes.

I imagine it's a mad scramble right now to find someone who can do the role justice. Plenty of talented actors around who could use a devious character to flex their acting muscles and/or potentially get their big break, so I hope they choose wisely. Park Jung Min does these kind of roles like a boss, but I think he's busy in movieland.

NOOOOOOOOOOO
please don't let this

Park Seo Joon should take a rest. Another byh48 member Ryu Joon Yeol is a good idea. ?

I knew this would happen ? I'd been praying for this production to be completed before his enlistment, I guess it's just not possible. Hmmm

I'm sad Kang Haneul dropped out, but I hope his military service goes well. I would love it if Park Seo-joon were to be cast. I loved him in Fight My Way. I'd like to see him in a darker role after that fun, light one. Here's hoping! *Crosses fingers!*

Noooooooooooooo.

Oh well, it was probably too scary for me anyway.

I might want Kim Young-Kwang to sign up for this.

Park Hyung Sik for the role.
Ya, my boy is such an adorable puppy but try watch him in "Sirius" and you can tell he definitely could pull off that role.

I want Yoon Doo Joon <3
or Choi Jin Hyuk

When I read the article about his enlistment date yesterday, I'm so devastated.

At this rate, any actor with decent acting talent will be just fine for me

Andwae!!

Hyun Bin, please. He'd do a phenomenal job, and I'd get to see (read: drool over) him on my screen again! ^^

Ji Soo, I found him to be absolutely one note and stiff in Strong Woman Do Bong Soon and Scarlet Heart. Although he was fared better in Fantastic and Page Turner. And he has a completely different aura compared to Uhm Tae Gu so what is going on with the casting to be honest. Somebody said Joo Ji Hoon, I agree on him. Get him on board.

How about Seo Jun Young? This guy is so underrated.

Dong Ha! I will cry with him even though he kills all the worst guys in this drama.

Ryu Jun Yeol please!!! ♥♥♥♥♥♥♥♥♥♥

Although I think he's busy filming for that 70's era movie he has with Song Kang Ho

First uhm tae gu left and now kang haneul...hmm it isn't looking very good for this drama. I like ji soo but I think uhm tae gu fit the role a lot better in terms of acting. Hopefully they can still cast a decent actor in kang haneul's role. I'll probably wait to see ppl's reactions though, before watching this drama

Why am I so sad reading this news? As if I lost something precious. Twice. :'(

Oh why?? I was really looking forward to his last pre army project! On the other hand, I'm glad that he's viewing his acting career in the long haul and not sacrificing his army duties to do another project- a move that ended up compromising some of his colleagues. There'll be plenty of opportunities to do other dramas when his military service is over.

It would be great if Lee Je-hoon can join the squad.

Gosh, I was so looking forward to it. Maybe Lee Min Ki or Ryu Joon yeol he was amazing in The King or Kim Jae Wook !

I wonder why he has to enlist this early. I mean he's nearing the peak of his career IMO and had the best chances to be a top tier actor soon. Not sure if this is good for his career :/

I'm saddened by this news since I was looking forward to Jisoo and Haneul reuniting in a project. But the whole cast is solid and I hope they find someone good for Haneul's role.