Retrieved May 11, 2012. ↑ "Ringer Cast, Bios, Sarah Michelle Gellar". cwtv.com. Retrieved August 16, 2011. ↑ "Ringer Cast, Bios, Kristoffer Polaha". cwtv.com. Retrieved August 16, 2011. ↑ "Ringer Cast, Bios, Ioan Gruffudd". cwtv.com.