Correct. There are also a number of characters that appear or die at different times and in different ways.Thank you. Had heard that Daryl doesn't exist in the comics and some of the villains are difficult to translate to the screen.
Here are a couple articles that show some of the differences.
***obligatory spoiler warning***
http://uproxx.com/tv/2014/02/10-fas...rences-walking-dead-comic-tv-series-spoilers/
http://www.pastemagazine.com/blogs/...ween-the-walking-dead-tv-show-and-comics.html
If you have not read the comics and like the show, I would recommend picking up the compendiums 1 and 2 which will get you up to episode 96 of the comic.