Syfy has released its mega guest star list for Alphas season 2 and it includes newcomers to the show like Sean Astin and Lauren Holly along with returning faces such as Summer Glau and Kathleen Munroe.
Alphas guest stars will include Astin (The Lord of the Rings trilogy, duh), C. Thomas Howell (Southland), Holly (NCIS), Steve Byers (Immortals), Kandyse McClure (Battlestar Galactica) and Noah Reid (Rookie Blue). Returning guest stars include John Pyper-Ferguson (Caprica) as Stanton Parish, Munroe (Haven) as Dani Rosen and Mahershala Ali (Treme) as Agent Nathan Cley. Plus, Glau (Dollhouse) will return for three episodes playing Skylar Adams. The drama returns Monday, July 23.