<Li> Pony Head ( voiced by Jenny Slate ) -- Star 's best friend from Mewni and a floating unicorn head . She is described as sassy , sarcastic , and mischievous . She does not get along with Marco and is sometimes jealous of him when he interacts with Star . Nefcy said that Pony Head originated from an early story of Star where the latter was a fourth - grader and was discouraged during her attempts to recover a stolen bike ; an image of Pony Head appeared and told Star not to give up . </Li>
<Li> Pony Head ( voiced by Jenny Slate ) -- Star 's best friend from Mewni and a floating unicorn head . She is described as sassy , sarcastic , and mischievous . She does not get along with Marco and is sometimes jealous of him when he interacts with Star . Nefcy said that Pony Head originated from an early story of Star where the latter was a fourth - grader and was discouraged during her attempts to recover a stolen bike ; an image of Pony Head appeared and told Star not to give up . </Li>
who does jenny slate play in star vs the forces of evil
who does jenny slate play in star vs the forces of evil
Pony Head
Pony Head