Mable Lobster/Jenkins is an elderly woman at Shady Shoals that's seen in a purple dress and usually carries a cane. She has been married to Old Man Jenkins or Dennis Rechid, with whom she had with Larry the Lobster. In "Shuffleboarding" she does laundry and talks to Man Ray and states that they met in high school. In the movie, she calls SpongeBob a "KnuckleHead McSpazzatron". She also appeared in "Keep Bikini Bottom Beautiful", in which she thinks that Squidward is the trash man.
- "Mermaid Man and Barnacle Boy" (debut)
- "SpongeGuard on Duty"
- "Graveyard Shift" (brief cameo)
- "Shuffleboarding"(Secondary Character, name revealed)
- "Sandy, SpongeBob, and the Worm"
- "Doing Time"
- "Gramma's Secret Recipe"
- "The SpongeBob SquarePants Movie" (few cameos and briefs)
- "Keep Bikini Bottom Beautiful"
- The Great Snail Race (deep in crowd scene)
- Mid-Life Crustacean
- Overbooked (debut in Sandy's Treedome)
- "Gary in Love