This came to my attention courtesy of Pando of Lighter Side of WoW.
Sam the Wise <The Metal Brewmaster> is found in the Shrine of Fellowship in the Jade Forest. Another one of those double references, it’s a reference to Samwise Didier (one of the art directors at Blizzard and the senior art director on Starcraft II) as well as to Samwise Gamgee (of Tolkein’s Lord of the Rings). You can see some of his art here.
Samwise (Blizz artist) is the creater of the Pandaren, and is the frontrunner of Level 90 Elite Tauren Chieftains (The Artists formerly known as Level 80 Elite Tauren Chieftain), is an American band comprised of Blizz employees. They performed at Blizzcon 2008 and you can see them in game at Darkmoon Faire.
Samwise Didier as you can see is a metal music fan (hence the Metal Brewmaker) and if you talk to him he says Meatloaf quotes at you!
“I would do anything for love. But I won’t do that. At least, not right away”
“What is best in life? Brothers, Ballads and Beer! “
“I like my woman like I like my beer: full-bodied.”
“When dawn rises, the hammer shall fall!”
I wonder if Samwise likes Meatloaf? 
Samwise Gamgee is also reperesented here because Sam the Wise is found at the Shrine of Fellowship (referring to Fellowship of the Ring).
