Arnold Schwarzenegger's appearance as Santa Claus is drawing the internet's attention as a viral video shows him clad in a Christmas sweater, tan pants, grey hair and beard, and a holiday beanie.

Red velvet suit, white fur trim, tall black boots, cozy (if not indulgent) pom-pom hat. Santa Claus’ uniform may have some variations, from Tim Allen’s off-duty outfits in “The Santa Clause ...