What are the special abilities of each class?

Question

In TF2, I have noticed that some classes have special abilities. For example:

• Scouts can double jump
• Spys can cloak
• Pyros can air puff.

Now I know this is a pretty basic question, but what are all the special abilities of each class?

I know there may be multiple abilites for some classes, so could you please list them all.

Answer 1

It's sometimes difficult to define what would count as special abilities, rather than weapon traits, but I'll give it a go.

Scout:

• Double jump
• Highest move speed
• Fast but weak melee attack
• Low Health

Soldier:

• Rocket jumping
• Slow speed
• High health

Pyro:

• Immune to afterburn
• Most flamethrowers can airblast enemies/projectiles
• Many weapons set enemies on fire and/or are effective against burning enemies

Demoman:

• Sticky jumping (and, less common, grenade jumping)
• Can leave stickybombs and detonate them later
• Massive burst damage potential
• Slow reload
• Can swap out one or both of his ranged weapons to become stronger at melee - known as a demoknight

Heavy:

• Highest health of any class
• Slowest speed
• Miniguns require spinning up, making Heavy even slower

Engineer:

• Can build a sentry, which fires on enemies**
• Can build a dispenser, which heals and resupplies allies**
• Can build teleporters, which instantly send teammates** from on loaction to another
• Can repair and upgrade any building, even ones built by other teammates
• Low health

Medic:

• Can heal allies**
• Builds ubercharge by healing
• Natural health regeneration
• Slightly faster than most classes

Sniper:

• Sniper rifles have no damage falloff
• Sniper rifles do not randomly crit and always crit on headshots
• Sniper rifles charge while zoomed in and deal more damage the longer they are zoomed in.
• A fully charged headshot deals 450 damage and will one-shot almost anything
• Low health

Spy:

• Can disguise as enemies or teammates
• Can use cloak to become invisible
• Attacks from behind with a knife will always one-hit kill
• Low health

** Teammates and allies can also mean disguised spies on the enemy team

Answer 2

Scout: Double Jump
Soldier: Rocket Jump
Pyro: Airblast
Demoman: Charge/Sticky jump
Heavy: Sandvich dropping/minigun spinning
Engineer: Building
Medic: Ubercharge
Sniper: Scope/zoom/head criticals
Spy: Disguise/Cloak/Instant backstab kills

These are the main ones.