What are the real names of the Team Fortress 2 Classes?

Answer 1

The Demoman, Engineer and the Sniper are the only classes that are known to have actual real-life names.

Demoman - Tavish DeGroot

Engineer - Dell Conagher

Sniper - Lawrence Mundy

The actual names of these three classes in Team Fortress 2 are based on history. For example; Dell Conagher, the BLU Engineer is the grandson of Radigan Conagher who built a life-extending machine for Redmond Mann and his brother; Blutarch Mann plus a third life-extending machine for an unknown entity... (Possibly Gray Mann)

Don't pay as much attention to the text above as that was only an example to prove a point. Let's move on...

However, there are some classes that have referred names. These names are not proven to be their actual names.

Soldier - Unknown; Referred to as "Mister Jane Doe"

Heavy - Unknown; Referred to as "Ivan" or "Heavy Weapons Guy"

Scout - Unknown; Referred to as "Judas" By the Soldier

Max from Poker Night at the Inventory refers to the Heavy as "Ivan". There is no other reference to the Heavy's name being "Ivan" besides Max's reference.

These names are known as aliases and are not proven to be true to the classes' actual identity.

Anyways, Going back to the initial question; "What are the real names of the Team Fortress 2 Classes?"

That question alone cannot really be answered as the other classes in TF2 simply DON'T HAVE real names because there simply is no history behind their identity, unlike the Engineer or Demoman. Therefore they are not mentioned in TF2 history and have no "real" names.

Pyro - Unknown

Medic - Unknown

Spy - Unknown

You can see the storyline of Team Fortress 2 here:

http://wiki.teamfortress.com/wiki/Storyline