You can check your Character inventory by tapping on the Battler section on the left, and then selecting Characters:
Every character has the same set of skills and abilities – and they’re determined by the player who is controlling them. However, some characters are rarer than others. Through levelling up you’ll unlock at least 1 new Common character per Season. You can also unlock new You can become a member of Club Royale by buying the BattlePass. As a member of Club Royale, you’ll instantly unlock a Legendary character, whilst you’ll have access to many more Rare and Legendary characters as you continue to level up.