If you’re an NCIS fan, you already know that iconic funny lady Lily Tomlin will be guest-starring this coming season as McGee’s grandmother. But what you may not know is that Penelope McGee, like her kin, is a science nerd.
“She’s a scientist, and she’s very sharp,” Tomlin told TVLine after the Television Critics Association panel for the Showtime series Web Therapy, on which she guest stars.
Read more at EW
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