NHL Expansion Teams are Hockey Clubs that became part of the NHL after the original six, there was a large NHL expansion in 1967, but just one new team joining is also called an expansion.

In the world of Check, Please!, there are four fictional NHL expansion teams.[1] They are:

As of the 2017-2018 season, Las Vegas has a team in real life, the Las Vegas Golden Knights. However, when Check! Please began there was no such team. Additionally, there is currently talk of Seattle, Washington getting an NHL team as well (needless to say, Ngozi knows what's going on).