You've probably seen my buddies and I several times today. You may even have talked to us! We're pretty much inseparable, and we've played a lot of games over the years - usually fancy dress, but occasionally others, and always for a special occasion.
Our leader is the oldest, and rather melancholy. He's mostly here to keep an eye on his little brother. He sometimes goes off on his own, though, and when he does he has a much wider range of emotion. Or so I've been told.
Then come the twins - the hothead and the fraidy-cat. Sometimes, they bring their cousins along. I've never been able to get a good number on them, but there are a lot - thousands, or even millions, at first glance.
Then comes our leader's little brother, though you wouldn't know it at first glance. He cries a lot, but he means well. He's also a bit odd sometimes, and likes hanging off things, always dangling his legs over the ledge.
Then there's me, the tall one. I'm almost as tall as our leader, despite being closer in age to his little brother. Makes you wonder why he's in charge. Not that I'm jealous.
And after me comes the quiet one. He's a bit grumpy, but I like him. I know I wouldn't be able to speak up as well I do without him by my side.
Who are we? And who am I?