Gob Bluth is about to get a little help from his brother-in-law — David Cross is joining Will Arnett and the rest of the cast of Running Wilde as a series regular! Cross will play a radical environmentalist (a part that originally belonged to a different actor in the show's pilot). With two former Arrested Development stars coming together this Fall, could we be in store for more cameos on the newbie show? Portia de Rossi seems to be available . . .