"Diesel" Doug Mohns and Jack "The Octopus" Stoddard have both passed away.
(Cool hockey nicknames died years ago, too. But that's a different story.)
Mohns was one of the most versatile hockey players ever, excelling both at forward and on defense. He starred with Boston and Chicago, and, late in his career, was the first ever captain of the Washington Capitals. At the time of his retirement Mohns' 1390 career games was the 5th highest total ever.
The long-armed Stoddard was noted for his good looks more so than his hockey ability, at least according to legendary hockey scribe Stan Fischler.