I know her as Megan from the Progressive TV ad or the gal from the latest Milo's Dog Treats TV ad. Melamie is very recognized and memorable by her voice, however she was on Notes from the underbelly and I don't remember her from that! Also found that Melanie has worked with Yoplait and 1-800 Dentist.
So I would say between 8 and 13- depending on the maturity level of your child. In texas there is no law that stipulates when a child is old enough to stay home alone. In fact there was a news story on this just this month (I'm pasting the details for you below.). Good luck!
Illinois law states that a minor must be 14 years of age or olderto be left home alone for an extended period of time. Maryland law says age 8 for a child to be left home alone. New Mexico law says age 10 to be left home alone. North Carolina law says age 8 to be left home alone. Oregon law says age 10 for a child to be left home alone.