Dirty Deck

Dirty Deck is part of the 2017 "Cruddy Sport" Grossery Gang. He comes in 6 colorways, 2 from the standard set and then 2 each for subsequent Easter and Xmas sets. He's pretty similar to the previously featured Gutter Skater trashie. He's the 3rd personified skateboard to featured on BPA, after the aforementioned Gutter Skater and the Sonic Sidewalk Surfers.

P.E.T. Alien

P.E.T. Alien figure from 1994 - this was a cereal premium from Rice Krispies in the UK. P.E.T. stands for Pocketsize Extra Tiny.

The Skateboard Champion

A skateboarding frog. He's made in 1978 by Magneto and is from West Germany. Similar to the Pinocchio figure previously featured on BPA.

Edit: This frog's box advertises as "The Skateboard Champion." I updated the title and also scanned the box:

Snoopy X

Snoopy, the king of skateboarding figures. Seen here in Joe Cool form as a bubble bath container. Probably from the 80s.

Other previous Snoopy appearances on BPA: Snoopy Magnet, Snoopy on a Green Board, Snoopy on a Green Board Again, Snoopy Mug, Wind-up Snoopy, Work Out Snoopy, Fatigues Snoopy, Poochiefied Snoopy, The Easter Beagle, Peanuts Skate N Surf set, & Peanuts Mini Skateboard set.