Daryl Dixon is a fictional character from the American television series The Walking Dead. He is an original character and shares no comic counterpart. He has received a large amount of popularity since his first appearance, and as such, is being brought into the comic series.
In their childhood, Daryl and his older brother Merle lived with a neglectful alcoholic father. He was raised by Merle and shared his Nazi beliefs, though Merle himself was often away (sometimes serving time in juvenile institutions). Daryl spent significant periods of time being alone, and throughout this, learned to fend for himself and adapt a hard-boiled survivalist mindset.
Daryl first appears furious when the scavenging survivors, along with Rick, return to the campsite without Merle. He's furious with Rick, for handcuffing Merle to a roof, and T-Dog, who admitted to dropping the key. He, Rick, Glenn, and T-Dog soon head back into the city to rescue Merle, only to find his severed hand in the place where he was previously. Daryl grieves for his brother for a short amount of time before managing to bottle up his emotions and continue to put on a strong appearance. While he and the others search on the streets for any sign of Merle, they run into a band of thugs, one of which the group captures and is threatened numerous times by Daryl. After realizing the 'thugs' were merely nursing home employees and intended no harm, they returned to the camp. Shortly following their return, zombies invade the campsite and kill many of the survivors. The following morning, Daryl helps carry, burn, and impale the dead survivors (one of which he allows Carol to do because it was her husband).
When the survivors find out that Jim has been bitten, Daryl attempts to kill Jim are thwarted by Rick. Instead, he's convinced to let Jim die peacefully in the woods, even though he secretly wishes he could have killed him himself beforehand. Daryl and the others briefly find relaxation at the CDC, enjoying the luxuries the facility has to offer, including hot water and real beds. He enjoys dinner and wine with everyone and learns about TS-19 and Dr. Jenner's work, as well as the fall of the C.D.C.'s infrastructure. He's enraged when Jenner attempts to lock them inside the building that's about to blow up and attempts to kill him. They're successfully able to escape, however, due to Rick's grenade that shatters the windows. He drives off in his pickup truck, away from the complex as the ruins burn.
In Season 2, Daryl is shown to be calmer and more cooperative, and has shown fledgling friendships with various group members, as well as revealing a more compassionate side, defending their lives from zombies on different occasions and assisting them in their time of need. He is the one who searches the most for Carol's daughter, having felt a resemblance between her and how he was as a child, and refuses to give up. All the while he struggles with his own insecurities, feeling inferior to Rick and Shane and not knowing where he truly belongs. He slowly begins to form a bond with Carol, who was previously a victim of abuse just like he was. She acknowledges his importance and equality to the other 'leaders' of the group. Following the reveal of Sophia's zombified figure in the barn, he becomes emotionally detached from everyone (including Carol) and hesitates to go out looking for people anymore. Carol attempts to bring him back into the fold of the group, much to his frustration. He's shown, as of recent, to be attempting to avoid Carol. But during time, Daryl starts to warm up to the group as he participates in meetings and helping out Rick and Shane with Randall. Daryl is forced to shoot Dale out of mercy when he is fatally attacked by a walker as Rick is hesitant to kill him.In the finale of season 2, Daryl proves once again his physical strength when he's key part to the group escape from the walkers' ambush. There is also a sign of a possible deeper relationship between Daryl and Carol when Carol attempts to convince Daryl to go on their own as Rick's leadership is doubted. Daryl asks Carol what she really wants. She declares she wants "a man of honor"; and Daryl states, "Rick's GOT honor."