Who were the two people flanking the stage during the State of the Union?

Kamala Harris and Nancy Pelosi were right behind President Biden. No mystery there. But who were the other two—the masked man on our left and the unmasked woman on our right? Security?

I’ve tried and failed to Google this question.

I watched on PBS’s website on my computer. Maybe if you watched on TV you heard them identified—not so much their names as the reason for their presence.