(I originally wrote this post in summer of 2015, but decided to re-post it with edits...)

In alphabetical order:

1. Bae Doo Na (actress; loved her ever since Cloud Atlas.)
2. Cha Tae Hyun (actor; I got introduced to him through 1 Night 2 Days.)
3. Cha Yu Ram (athlete; billiards player; via The Genius S1)
4. Choi Jin Hyuk (actor; I'm pretty sure I first saw him in the drama Emergency Couple through Song Ji Hyo...he's just gorgeous O_O)
5. Chun Jung Myun (actor; through Running Man, I truly fell in love with him during episode 167)
6. Do Sang Woo (model/actor; I saw him in Ex-Girlfriends Club with Song Ji Hyo and my heart fluttered; I suffered from second lead syndrome)
7. Go Chang Suk (actor; saw him in Running Man, didn't know who he was, then ended up watching "The Huntresses" with Ha Ji Won, Kang Ye Won, and Ga In and he was in it...so I went back the RM episode he was in and watched it again. He's adorable! Also the Ugly Friends Festival on Infinity Challenge. The cutest man I ever did see!)
8. Go Soo (actor; Running Man and then the movie Some with Song Ji Hyo)
9. Gong Myung (actor/singer; he's a part of 5urprise but he co-hosts Beauty View with Song Ji Hyo atm)
10. Ha Dong Hoon aka Haha (reggae singer; Running Man, of course)
11. Ha Ji Won (actress; introduced to her through Running Man...I think. Then I watched her movies The Huntresses, As One [Korea], and Haeundae)
12. Han Hyo Joo (actress; via Running Man. She was such a good sport in the episodes she was in, so I had to learn more about her. I've watched just about ever drama, movie, variety show she has been on. Definitely a fave actress of mine.)
13. Han Ye Ri (actress; I first saw her in As One [Korea] with Bae Doo Na and I really liked her, although I couldn't find many more movies or shows to watch with her in it. Now, she's guested in Running Man and she also was a character in Age Of Youth/Hello My Twenties on Netflix which I really enjoyed)
14. Heo Kyung Hwan (comedian; Human Condition)
15. Hong Jin Ho (retired pro gamer; via Running Man I'm pretty sure. Y'all see repetition? XD Anyway, then I watched The Genius and got hooked)
16. Hong Jong Hyun (model/actor; he was on Running Man but I really got interested in him after he walked a runway with Song Ji Hyo...Do y'all see another pattern here? ;D )
17. Hong Seok Cheon (Wikipedia says actor but I know him as a chef on Please Take Care of My Refrigerator LOL; he's openly gay in Korea, which I find incredibly brave and inspiring)
18. Im Joo Hwan (actor; learned of him through the movie "A Frozen Flower," which starred Song Ji Hyo, and then I watched his first appearance on Running Man. I think. You should have learned by now that I mostly get to know Korean celebs through RM.)
19. Jang Do Yeon (comedian; pretty sure I first saw her on Infinity Challenge, when she guested in Kwang Hee's project during the Sixth Man series. She and Park Na Rae...)
20. Jang Dong Min (comedian; I think I got introduced to him via Running Man first. Then I went on to look out for him in the comedy scene and other variety shows, like Infinity Challenge, The Genius, Crime Scene...He's great.)
21. Jeong Tae Ho (comedian; Human Condition, then Gag Concert!)
22. Ji Suk Jin (comedian? Singer?...Running Man...)
23. Jo In Sung (actor; OKAY, I don't remember how I first saw the guy. I just knew he was a big deal when I first started getting into Korean entertainment. Plus he's good looking, so that doesn't hurt)
24. Jo Se Ho (comedian; Roommate then Happy Together)
25. Jung Hyung Don (comedian; host of Weekly Idol.)
26. Jung Joon Ha (comedian...I think? Infinity Challenge)
27. Jung Joon Young (singer; I started watching 1N2D S3, found him extremely annoying, and then grew to love him)
28. Kang Ha Neul (actor; pretty sure I saw him on Running Man first, and then watched Moon Lovers: Scarlet Heart Ryeo ^^)
29. Kang Ye Won (actress; got introduced to her via Real Men: Female Edition. She's such a loveable person, and now she's on WGM with Oh Min Suk...)
30. Kim Byung Man (comedian; first Running Man and then LOTJ!! I wish the earlier seasons were English subbed.)
31. Kim Ja In (pro rock climber; she appeared in Running Man, and I've followed her on Instagram ever since)
32. Kim Ji Min (comedian; I don't remember where I first saw her but I've seen her in everything since: Human Condition, Gag Concert, Running Man...)
33. Kim Jong Kook (singer; through Running Man)
34. Kim Joo Hyuk (actor; via 1N2D; I look forward to his career!)
35. Kim Joon Hyeon (comedian; Running Man probably; he's also in Human Condition, I've watched his sketches on Gag Concert, his appearance on 1N2D)
36. Kim Jun Ho (comedian; member of 1N2D. Also watched Human Condition, which is an amazing show. He has his moments haha)
37. Kim Sook (comedian; Running Man and now Sister's Slam Dunk S2. Basically any female comedian = I love her LOL)
38. Kim Woo Bin (actor/model; first introduced to him through Running Man, I'm sure. The rest is history (; )
39. Lee Dong Wook (actor; he was on Roommate, very busy, and very down to earth. I liked him from the get-go. He's also friends with Song Ji Hyo so that's a major plus)
40. Lee Kwang Soo (actor; psh, we even gotta talk about this rn?)
41. Lee Pil Mo (actor; second lead syndrome from Emergency Couple)
42. Oh Hyun Min (LOL, his Wikipedia says "television personality" so we'll go with that XD Got to know him through The Genius, and he's just so adorable that I couldn't help but love him)
43. Oh Min Suk (actor; OHYE COUPLE FOR THE WIN!!! ^^)
44. Park Min Woo (actor; via Roommate. I hope he's doing well. He's very cryptic on his Instagram...)
45. Park Myung Soo (comedian; first through Running Man, and then through Infinity Challenge and Happy Together)
46. Park Na Rae (comedian; see Jang Do Yeon :D )
47. Raymon Kim (chef; probably Running Man first, then 1N2D. I've also seen him on Please Take Care of My Refrigerator)
48. Shim Hyung Tak (actor; after his appearance in Infinity Challenge, Dummy Avengers Special, I'm obsessed <3)
49. Song Ga Yeon (MMA fighter; met her through Roommate. Fell in love with her ever since.)
50. Song Ji Hyo (actress; Running Man. She's my absolute fave K celeb ever.)
51. Song Joong Ki (actor; via Running Man. All y'all bandwagoners can back off (; )
52. Sung Si Kyung (singer...But I only know him as MCs of variety shows though XD )
53. Yang Sang Guk (comedian; Human Condition, then Gag Concert, then Society Game <--which is a really good show, it's along the lines of The Genius with the same PD team I believe ^^)
54. Yang Se Hyung (comedian; Infinity Challenge. His "Yang Se Body" chant that he does when he introduces himself gets me every time.)
55. Yoo Jae Suk (comedian; Running Man. The nation's MC. He truly seems like a very good man)
56. Yoo Se Yoon (comedian; host of Abnormal/Non-Summit)
57. Yoon Park (actor; I knew of him through Running Man but I didn't get interested in him until Age Of Youth/Hello My Twenties on Netflix actually: he played such a sweet character, I couldn't help but fall in love with him)
58. Yoon Shi Yoon (actor; aka Yoon Dong Gu on 1N2D; I also watched Mirror of the Witch, which I actually enjoyed)

I need to show some love to the "non-celebrity" Koreans I see on a pretty frequent basis. These mostly include staff members of the variety shows I love:

1. Cho Ho Jin (aka Cho/Jo PD; via production director for Running Man; moved to PD the Chinese version of Running Man, and I believe he's still there...)
2. Go Dong Hwan (as a floor director for Running Man)
3. Im Hyung Taek (aka Taek PD; via production director for Running Man)
4. Kim Joo Hyung (aka Myuk PD; via production director for Running Man; has since moved back to producing SBS's Ingkigayo)
5. Kim Tae Ho (IC PD)
6. Ryu Ho Jin (as a production director for 1 Night 2 Days)
7. Ryu Kwon Ryeol (via Yoo Jae Suk's VJ for Running Man, and I've seen him VJ for other shows as well, which is cool)