Kristen Wiig is the clear leader in the total number of sketches by cast member in the 34th season. This chart is from Vulture. They also show the most frequently impersonated celebrities, which was led by Obama. The number of guest appearances in skits was Tina Fey, followed by Justin Timberlake.
Once again Tiny Fey did a perfect Sarah Palin imitation as SNL spoofed the Vice Presidential debate between Joe Biden and Sarah Palin. Queen Latifah played PBS's Gwen Ifill. Here's the clip from SNL.
Tina Fey played GOP vp candidate Sarah Palin again last night on Saturday Night Live and once again she was perfect. The skit parodied a series of interviews with Sarah Palin by Katie Couric.