NEVER SAW IT COMING BEEYOTCH!
Anyway:
Altair-Assassin's Creed
As if THIS wasn't obvious.
Sirius-Harry Potter
I have no idea what Sirius Black looks like. Therefore, you get Sirius from Bomberman 64 dressed up as his dog form.
Regulus-also Harry Potter
Regulus Black was Sirius' Black little brother. Regulus from the 64 games, on the other hand, isn't happy that his only weapon is a stick. And a fragile stick at that.
...yeah.
EPIIIIC XDDD
_________________ We tread these paths of light so long
I'm right beside you just like thousand times before
I'm knocked as I can be, I face a tragedy
That feeling, deceiving, that burning your soul
My king goes on, my will be done
So join me fallen one
We'll drown our sorrow to this endless sea
Together we'll unchain the rain
Escape the world into our sanctuary
There in my arms you'll be free