THR reports that Chris Cooper (American Beauty, Bourne Identity, The Town, Jarhead) will take the role of Oscorp founder Norman Osborn in Amazing Spider-Man 2. The character is best known as the identity of villain The Green Goblin, along with the father of Peter's best friend Harry (Dane DeHaan). Not to mention being yet another of Parker's tragic father figures.
We already know that Electro (Jamie Foxx) and Rhino (Paul Giamatti) will be in the film and it's starting to sound like the Sinister Six will be revealed in the sequel. Colm Feore and Felicity Jones recently joined the production it's likely they'v been hired for Daily Bugle roles J. Jonah Jameson and Betty Brant. However, it's very possible they could be taking a page from Sam Raimi's Spider-Man 4 script making them the Vulture and Black Cat.