Homeslice is an alien who met Samurai Jack, soon after he arrived in the future due to Aku. He is friends with Cole Lampkin and Brobot. The trio are responsible for giving Jack his name. Notably, Homeslice is the first character in the series who is heard calling him "Jack," perhaps as a slang term.
It is unknown how the past Aku's destruction afffected his existence in the future.