Count me in the horde of devoted
Ban-chan followers. He pretty much had me seduced five seconds into the first episode of the anime. There’s no doubt that he is a whiny, sneaky, arrogant, mean, perverted jerkass… but at the same time also the coolest, most badass of fighting geniuses, not to mention a reliable, unselfish, cuddly MEGA DORK!
Though you’ll probably never experience that last part unless your name is Ginji. It’s quite understandable that he turned out as twisted as he is, with that sad backstory of his. It’s BAAAAAAAAAW-worthy to boot. Ban-chan…

Oh, and he is sexy too.

Very closely following Ban is...
Ginji. Always sweet, cheerful and bouncy, but yet so charming and charismatic that you can't help falling head over heels for him (even if you're one of the enemy!). He's pure and open and can always make you smile even if everything seems hopeless. BUT! This doesn't mean he's a dense, innocent whimp. No, he knows when to get serious and can be
just as badass as Ban ever is. He's a born fighter, and it
shows. Ginji-kun, aaah~
Aaaaaaand he's cute.

Those two are just amazing. BUUUUUUT there are some others whom have definitely grown close to my heart as well...
Emishi - I liked him from the get-go he showed up. I just think he's charming with his well-balanced contrast between wanting to make people laugh.... and being super badass with his smexy whip. Also,
DON'T PUT YOUR FOOT ON THE FUTON!!!Maria - Another character I liked from the moment she was introduced. Again, I like how she in one moment is cheerful and passionate, and the next time dark and strict. And you've GOT to love her for taking care of Ban-chan when he was a little kiddo. Maria-mama! Her design is gorgeous too, I can TOTALLY understand that the artist thinks she's a fun character to draw.
Paul - He's one of those characters I sometimes forget just how much I really like. Somehow, his wisdom and knowledge always gave me the impression of being much more than just a middle-aged guy with a coffee shop. And according to the latest chapters... BOY, was I right.
Yukihiko - Polite and cautious, friendly but deadly. A sweet boy and a badass mercenary. Damn, he hasn't showed up for hundreds of chapters, but my impression of him has not faded the least, and my stance on him as one of my favourite characters stands firm. I'm praying for the day he shows up again, if that ever happens. I'm waiting for you, Yukihiko-kuuuun!
But in all honesty, the whole cast of Get Backers is one of the best I have ever seen. Everyone's likeable in their own way and has dozens of skeletons in their closets that makes you want to know more about them. Awesome.