Who was the youngest player to play in an NHL game?

Question

I would like to know who was the youngest player to play in an NHL game. It would be also interesting to know also some related records (youngest goalscorer, youngest player with an assists, similar records for Stanley Cup) and Top 10 of this statistic (if it is available somewhere).

I have checked List of NHL records (individual) at Wikipedia (here is link to the current revision), but the only things mentioning age I found there were were that the youngest player in NHL history to win the Calder Memorial Trophy was Nathan Mackinnon and the youngest goaltender to win 300, 400, 500, 600 regular-season games was Martin Brodeur.

Answer 1

According to Guinness World Records, Armand "Bep" Guidolin was the youngest player to ever play in an NHL game:

At 16 years 11 months, Armand "Bep" Guidolin (Canada, b. 9 December 1925) became the youngest player to skate in an NHL game playing for the Boston Bruins (USA) in a 3-1 loss to the Toronto Maple Leafs (Canada) on 12 November 1942.