This post is essentially here to promote the Heroes online comics available at the Heroes website.
I feel slightly stupid doing this as I haven't read any of the comics due to the Beeb's unexplained and annoying decision not to air Heroes in the UK - GRRRRRRR!!
Nonetheless if you live in the land of the free and unrestricted TV you may well watch the show. But you may not follow the wealth of material available online. I've pointed you towards the webisodes, but I've not said too much about the comics. They are a great way to flesh out the story of Heroes and have introduced us to a number of characters who crossed over into the main show. I guess if maybe I can show you the influence the comics have had maybe you'll read them - bit of a problem though, I haven't read them in ages due to the aforementioned issue so I'm struggling to remember who's who!
This character and her brother were introduced in a comic entitles 'Maya y Alejandro' giving fans a heads up as to their abilities and fugitive status prior to their appearance in Volume 2.
This speedy hero and love interest of Matt was introduced in a two part story 'Our Blessed Lady of Acceleration' again we knew her power and her background as a proffesional thief. I really remember this from when I saw her in the show and thinking 'hey, that's Daphne!' Reading the comics does give you that sense of 'I got there first' and does make the show more interesting and valuable I feel.
You might have spotted this character as one of the marines in Pinehearst or an agent for Building 26, but you only know the real story if you go online. Rachel is a teleporter who tried to hide her ability, even joining the army hunting the 'specials' but REBEL 9who also first appeared in comics) has other plans for her. You get quick glimpses of her in the show, payoffs for the full story you find online.
Gael and Bianca
You only got one glimpse of these two as Sylar killed them off, and they got a brief name mention. But these two were featured extensively in a series of comics exploring the inner workings of the company along with a number of other fully developed characters. Seeing these two was a minor thing for casual viewers but a reward for nerds!!
OK, I'll leave it there 'cause I think you get idea - there's tons of stuff online and it's all free so if you want more out of your viewing experience then I recommend the Heroes website - have fun!