← Previous Next → 2x26 Heat Signature 5/5 (1 vote) First Aired: May. 09, 2011 on Cartoon Network Summary: Marceline plays a prank on Finn and Jake by making them believe they're vampires, but it nearly goes too far when they're manipulated by her ghost friends.

Series Main Characters

• Finn
• Jake
• Ice King
• Princess B…
• Lady Raini…
• Lumpy Spac…

• Marceline …
• BMO
• Tree Trunks
• Cosmic Owl
• Duke of Nuts
• Old Lady P…
• Brad
• Bucket Kni…
• Peppermint…
• Demon Cat
• Hot Dog Pr…
• Business Man
• Frog
• Lenny
• Lumpy Spac…
• Monty
• Starchy
• Candy Apple
• Zombie Dog
• Mr Cream P…
• Mr Cupcake
• Chet
• Lumpy Spac…
• Melissa
• Manfred
• Chocoberry
• Candy Corn…
• Ice Cream …
• Eclair Boy

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Guest Stars   [no credits found]