News briefs: True Blood casting; 'Pandorapedia' video is live

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Dec 14, 2012, 4:09 PM EST

Syfy will air an eight-hour marathon of NBC's Chuck with an eight-hour marathon of episodes from the second season, starting Thursday, Jan. 7, 2010, from 5 p.m. to 1 a.m. ET/PT. Chuck returns for a third season on NBC Sunday, Jan. 10.

Joe Manganiello (How I Met Your Mother) has been cast as Alcide, an alpha male werewolf, in HBO's True Blood, according to The Hollywood Reporter; also joining Alan Ball's vampire drama is Cooper Huckabee, who will play Sam's (Sam Trammell) dad Joe Lee Mickens.

Lethal Weapon star Rene Russo has joined the cast of Kenneth Branagh's Thor as Frigga, Odin's wife, the Queen of Asgard and stepmother to the thunder god himself, Variety reports; Thor starts shooting in January for a May 20, 2011, release.

Pandorapedia, an official guide to the planet of Pandora from James Cameron's Avatar, has gone live; check out the video below.