Sebastian Jacob Niccals (or Jacob Sebastian Niccals) was born in 1941 and is the father of Murdoc and Hannibal Niccals.

In the Gorillaz autobiography, "Rise of the Ogre", he is described as a 'Notorious Booze Hound', 'Gambler', 'Womanizer', and a 'Ne'er-do-well' and was rumoured to have fathered many children in the land of Stoke-on-Trent. It was also said that he always avoided work, no matter what the cost.

He first discovered Murdoc as a baby abandoned on his doorstep on a night while arriving home from the pub. Over the years, he would often force Murdoc into taking part in talent contests in order to make some fast money.

Sebastian Jacob Niccals died in 1998.

He has an appearance inside the Winnebago on a picture frame in Gorillaz - MTV Cribs, with his name censored out.