On this episode of Beginnings: Field Guide, we talk about casting with Katja Blichfeld. For beginning – and even seasoned – actors, the world of casting can seem incredibly random and opaque.  To walk us through the ways in which casting contributes to the creative process of a project, we talked with Katja, who has cast a number of features and shows, including the The Carrie Diaries, as well as the entire run of 30 Rock.As well as the ins and outs of casting, Katja shares with us some stories from the early days of 30 Rock, we chat about the possibility of non-cynical networking, plus there's movie talk with the gang as we hit up Rocky, The Shining and Whore's Glory; and Mark and Andy discuss their humiliating commercial auditions in the wrap-up!Subscribe on iTunes and leave a review! And why not follow Andy and Mark on Twitter?