A

A is the character who serves as the main protagonist of the YouTube webseries Alphabet Attack.

"Climbing Up the Top"
A first appears when he knows he's the main protagonist of the show, A comes to participate in a game in which he and 25 other letters compete in a series of games to get the prize, A however dies after slipping of an iceberg when he and B, D, E, F, G, J, and L drown after getting slipped off of a collapsing iceberg, causing P and Q to survive, he later gets recovered and competes on the Quiet Quieters as Q tells him to do so, as soon as A climbs up the mountain, A loses as P makes it up first, causing him and his team to get UFE.

"The Cold Wave"
A however finally manages to build a proper snowman when V makes a snowman.

"Terrible Math Questions"
he gets an answer right, but his team is up for UFE.

"A Christmas Special"
he opens up a present and his team wins

Description
A is a dark blue Latin-script small letter A who likes to make toys, A later is friends with B, D, and G.

Trivia

 * A is one of the only two letters who are named after sight words, with the other being I.