Krellin is one of the Gods, more specifically one of the New Gods. Krellin is the god of jokes and merriment and of war and of sheep. He is known for defying Kraylus, who is his father. He is also known for his skill in the use of World Magic and the Eternal Flame like his father. He is the only god other than Kraylus who can use the Lathe of Heaven and the Eternal Flame. He wields a magic staff called Krellin's Cane which is so powerful he once used it to slay a dragon with a single blow.

The religion of Krellin is known as the Flock of Krellin. It was founded in the First Age. Its first high priest was the great elf wizard Allort.