LEGO® Minifigures™ Series 18 were introduced in 2018. Collection includes: Dragon Suit Guy, Firework Guy, Elephant Costume Girl, LEGO Brick Suit Guy, LEGO Brick Suit Girl, Cactus Girl, Party Clown, Cake Guy, Unicorn Guy, Flowerpot Girl, Birthday Party Girl, Birthday Party Boy, Spider Suit Boy, Cowboy Costume Guy, Race Car Guy and the Cat Costume Girl and sepcial character: 1978 Police Officer replica.
The idea behind collectable Minifigures™ was that each minifigure come in a sealed bag, so you never knew which minifigure you might get. You can reed more details on Series 1, Series 2, Series 3, Series 4, Series 5, Series 6, Series 7, Series 8, Series 9, Series 10, Series 11, Series 12, Series 13, Series 14, Series 15, Series 16 and Series 17.
Detailed information can be found on LEGO® website here.
Although released in 2018 it is sold out. You can still try to find them on eBay.
Some more information on this series can be found on Brickipedia.
Below you can find photos of all Minifigures in this collection:
