MarthaSmith is a minor character who first appears in the episode "Pickles." She is mostly seen in angry mobs (even leading one in the episode "The Krabby Kronicle") and is also a professional harpist in an orchestra.
Martha is a dark-aquamarine fish with a light teal dorsal fin. She wears a light purple dress and red shoes and also carries a purple purse. She is pretty tall compared to others.
Martha is sometimes seen with Harold. She appears to be very rich. Martha is usually mad at Mr. Krabs and hits him with her purse or leads angry mobs against him. She owns a pickle store in the Bikini Bottom Mall, which appears in the episode "Mall Girl Pearl."
In "Wigstruck," Martha is seen in a movie playing at Reef Cinema, saying, "It's true John, this isn't my real hair, I stole it!" and she takes off her wig that she was wearing.