I thought it might be a Croton too, but they don't seem to have that long thread with a little leaf at the end. However I'll have a Gargle to see what I can find. It does look familiar, but I just can't place it.
Although your plant is not quite the same as the one in the thread Identification: - Need plant ID | UBC Botanical Garden Forums the discussion may point you in the right direction.
I'd say definitely a Croton. Not ALL Crotons have the little leaf at the end. I grow around 14 different Crotons and only one of them has the long thread with the little leaf at the end. Here is a few of my Crotons without the little leaf at the end Ed
It does look like a croton. It looks like there is some yellow specks, or streaks in a couple of the leaves, but I never knew the tips of the leaves grew long skinny leaves like that. It looks like it may be in need of a lot more light and plenty of direct sun whatever it is.
