The second season of the TV series How to Train Your Dragon is written and directed by Dean DeBlois , and stars the voices of Jay Baruchel , Gerard Butler , Craig Ferguson , America Ferrera , Jonah Hill , Christopher Mintz Plasse , T.J. Miller , and Kristen Wiig , with the addition of Cate Blanchett , Djimon Hounsou , and Kit Harington .
How to Train Your Dragon 2 was the second season of a TV series .