I misread the scene, you’re right. So his head is–what–do recon for Regina?
Here’s my guess. Regina has a handheld mirror which she brings with her on her journeys. The actor who plays the magic mirror is there to be the voice/face of the genie in the shot as Regina looks in her handheld mirror.
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"That’s how you know you’ve really got a home. When you leave it, there’s this feeling that you can’t shake. You just miss it." Neal Cassidy