Nathan has a very Cary Grant-esque quality about his acting. He's usually suave and dashing, but he'll also play the goofball when given the chance. I always appreciate the choices he makes in his scenes and the choices he makes in the projects he does. It's nice to see him in roles that we wouldn't necessarily think of him playing. (To be honest Caleb, on Buffy, was one of those roles for me. He is sooo not a bad guy!!.LOL) I really believe he was put on this earth to play Richard Castle. He does it so perfectly! That said, Rick's still not my fav character he's done. I LOVE Dr Pomatter in Waitress. Nathan was brilliant in that role.  

I'll probably be checking this thread alot cause Nathan's the reason I started watching Castle to begin with. 

His smile just kills me everytime. 

What I really like about Nathan is that while he's a famous movie star, he still seems very real.  Very down to earth, funny, charming, intelligent, etc.  He's also one of those rare actors who men want to be friends with and hang out with, but who women want to date.  Not many actors can pull that off.  I also like that he's not a party animal with his name splashed across the tabloids.  He keeps his private life private, is dedicated to his work, and is generous with his time to the crew and cast.  I remember one actress who was playing an extra in a Castle episode and she said one memory she has from being on the show was of Nathan talking to her during some down time and just making her feel welcome, making sure she was doing ok, etc.  A leading man has enough to worry about on set, but for him to take time to speak to an extra shows a really special quality.  No wonder Castle has a reputation as one of the most welcoming sets in television. 

Lastly, a former co-worker's daughter guest starred on Castle (she was Ruthie, the socialite who in Home is Where the Heart Stops told Beckett Castle is known as The White Whale).  She also guest starred on a number of TV shows like NCIS, CSI: NY, Ghost Whisperer, CSI: Miami, and Heroes and she said that of all the leading men she'd worked with Nathan was one of the nicest. 

his acceptance speech was really moving, he seemed to be genuinely happy and touched. I have to admit that I never payed much attention to him but he's really growing on me and I'll certainly go and check his other work. And yeah, he looked really good I hope he found a nice spot for his award

waldkind said:

his acceptance speech was really moving, he seemed to be genuinely happy and touched. 

I was moved by it, too. Such a classy and heartfelt speech.  And his last phrase where he praised his fans ("let this giant crystalized tear of victory be a symbol of your excellent taste") made me instantly remember this dialogue from Firefly: 

lulu12345 said:

I started watching community because of his tweets and that show is really good! 

I watch Community and I really like it, it's a sort of a smart comedy, not just another stupid sitcom with a laugh track. Has some pretty good performances, too. This show is now on border of cancellation, though — only 10 episodes where shot this season and now their further fate is still inknown. In these circumstances I find Nathan's twitter support and his obvious efforts to help them survive the only way he can — by drawing attention of at least some his fans to this show — deeply touching and noble. You rock, Nathan. You know how it feels, to have your beloved show cancelled, and so you do whatever you can to save your friends and colleagues from that pain. I love you. 

wish4always said:

I saw Nathan in Firefly, and was really intrigued by this charming actor. He commanded attention, but in a not so obvious way.

When I saw the first episode of Castle, I thought they had created the series around him. Nathan IS Richard Castle. I cannot imagine anyone else playing this part. As mentioned above, he can have you laughing one minute, and reaching for your tissues the next.

I love the fact that he is truly committed to community and charity causes, especially his literacy work with children. This is such an understated but huge humanitarian quality that he has. He doesn't want the recognition for his community work, but that his name translates the projects he is involved in, into something substantial for future generations.

I didn`t know Nathan at all (before Castle showed up) but my OCD got me to buy the Firefly/Serenity DVDs although it`s not actually my kind of prefered show.

I just saw his face in a promo (starting episode 1 in German tv) and I liked it immediately. But there`s more to him as a person and as an actor. He seems to be a kind of a reserved guy but with an ultimateaura and a kind of amazing attraction that knocks you out when he smiles or laughs. And that is the fascination where Castle kicks in.

I think you hit it (bolded part). I cannot imagine any other actor playing the Richard Castle character, either. It seems that he IS Castle.