Char belong to the Salmonidae family. There are different species, including brook trout, arctic char and lake trout.
Char have slender, elongated bodies, flat heads, wide mouths and, as is typical for salmon fish, a soft, fleshy fin (adipose fin) just before the tail.
In terms of colour, there are variations of dark grey, olive green and orange. The lateral line is usually light coloured. Arctic char also have small yellow to reddish-brown flecks all over their body.
Depending on the type, char may grow to a length of 30 cm and weigh 1 kg.