This is a picture of Morgan Smith Goodwin, otherwise known as that redhead from the Wendy's commercials:
And this is a picture of Alyson Hannigan, the actress from the America Pie movies and the TV show, How I Met Your Mother (did you know Bob Saget does all the voice-overs for that show?):
When I first saw those Wendy's commercials, I could have sworn that these two were sisters. Seriously, look at those pictures and tell me you don't see the similarities. Well, as it turns out, they are not related and I wanted to clear up any confusion that people may have had about the situation. You're welcome.