There are 20 different player characters available in Spelunky HD, which can be used in all single player and multiplayer game modes.
Four are available from the beginning, but the remaining sixteen must be unlocked by fulfilling certain requirements.
Each of the Spelunkers have identical abilities: The differences between them are purely cosmetic and do not affect gameplay.
Unlocking all eight of the original secret characters earns the Achievement: 'The Entire Gang'.
The 8 bonus characters are not required for the achievement, and unlocking them does not contribute towards it.
Appearance: A character based on the Indiana Jones archetype of the 'Adventurer Archaeologist', with a very prominent red nose.
Unlock: Available from the beginning.
"Blue"
Color: Blue
Appearance: A man dressed as an early 20th century Safari hunter, with a pith helmet and hulihee beard. A cameo of Colin Northway.
Unlock: Available from the beginning.
"Red"
Color: Red
Appearance: A man wearing a Turban.
Unlock: Available from the beginning.
"Green"
Color: Green
Appearance: A woman with a green bow in her curled hair.
Unlock: Available from the beginning.
"Yellow"
Color: Yellow
Appearance: A girl wearing a miner's helmet.
Unlock: One coffin may generate randomly in each of the four main areas. Break it open and this character may be found trapped inside, which you will unlock once she is released.
"Lime"
Color: Lime
Appearance: A man dressed in Mariachi clothing.
Unlock: One coffin may generate randomly in each of the four main areas. Break it open and this character may be found trapped inside, which you will unlock once he is released.
"Purple"
Color: Purple
Appearance: A girl dressed as a pirate with an eyepatch, bandanna and gold earrings.
Unlock: One coffin may generate randomly in each of the four main areas. Break it open and this character may be found trapped inside, which you will unlock once she is released.
"Cyan"
Color: Cyan
Appearance: A man wearing a furry cyan animal hood, a purple jacket and green pants.
Unlock: One coffin may generate randomly in each of the four main areas. Break it open and this character may be found trapped inside, which you will unlock once he is released.
Van Helsing
Color: Black
Appearance: Van Helsing, the Vampire hunter from Bram Stoker's Dracula.
Originally included in the XBLA version as DLC, these eight characters are included as standard in the PC and PSN versions of Spelunky HD.
These bonus characters are not required for - and do not count towards - the 'Entire Gang' achievement.
The Eskimo
Color: Magenta
Appearance: An Inuk wearing a parka.
Unlock: Found inside a coffin in a Yeti Kingdom level.
The Round Girl
Color: Violet
Appearance: A 'round' girl, wearing glasses and a hairband.
Unlock: Found inside a coffin in a Spider's Lair level.
The Cyclops is based on the titular character of What is bothering Carl? an interactive storybook created by Spelunky's lead programmer Andy Hull. This is referenced to in the pop-up prompt to purchase the character when he appears in the Black Market, which reads 'Bother Carl'.