The showrunner announced to Ain't It Cool News that he has written the first three episodes, while comic creator Robert Kirkman has scripted episode four.
Glen Mazzara and Adam Fierro complete the line-up, writing episodes five and six respectively.
Darabont also confirmed the complete list of directors working on the series. Guy Ferland, Gwyneth Horder-Payton, Ernest Dickerson and Johan Renck will each helm an episode, in addition to the previously announced Michelle MacLaren.
Renck recently directed two episodes of Breaking Bad, while Dickerson previously worked on The Wire. Both Horder-Payton and Ferland have directed episodes of FX cop drama The Shield.
Darabont himself will direct the show's pilot episode.
The Walking Dead will air in October on AMC.