Kirsten Vangsness, Shemar Moore Kirsten Vangsness, Shemar Moore

Criminal Minds' quirky lab tech Penelope Garcia is about to show her BAU colleagues — and viewers — a side of her they've never seen.

On Wednesday's episode, the show will reveal that Garcia (Kirsten Vangness) spends her time outside the lab acting in a theater troupe. When Hotch (Thomas Gibson) finds out, Garcia begs him to keep it a secret from the rest of the group.

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