Do you like Marvel characters? Boy howdy, there are a ton of them in LEGO Marvel's Avengers! Courtesy of IGN Wiki, below you'll find a list of every character in the game (in the order they appear on the character selection screen), how to unlock them, and how much they cost.

Please note, several of the character tokens share the same space on the character selection grid.  Characters marked as "Story Mode" in the "How to Unlock" column are automatically added to the roster as you play through the game in Story Mode (although you may still have to shell out some Studs to play as them). Extra are via DLC.

There are also characters you can purchase as DLC.

LEGO Avengers Characters

Row 1

Row 2

Row 3

Row 4

Row 5

For some reason, the Hulkbuster armor is not available on the main Character Select screen.  Instead, you have to select it from Tony Stark's Iron Man Suit Select screen pictured below.  Once you've unlocked the Hulkbuster (simply complete Anger Management in Story Mode), switch to Tony Stark or any Iron Man suit and pull up the Character Select screen.  The below will pop up instead.  That's where you'll find the Hulkbuster armor.

Row 6

Row 7

Row 8

Row 9