Western times Krabs (one with a bread and overalls)
Cowboy times krabs (one with a tall hat)
Seven in background
Role in episode
They are summoned by Mr. Krabs in order to kick Old Man Jenkins out of the Krusty Krab while he is summoning his own ancestors. However, both characters' ancestors are bummed out from them fighting and kick them out so the crabs can have a party.
A family member that looks like a caveman is seen in the crowd, which means he came after Prehistoric Krabs who is seen in "Ugh."