"Mermaid Mayhem" is an episode of Shimmer and Shinefrom the second season.
"When Shimmer and Shine tell Leah that mermaids live in Zahramay Falls, Leah wishes that they could be mermaids too."
- Zac does not appear.
- This is the first episode of the second season that does not feature any recurring characters.
- Eva Bella as Shimmer
- Isabella Crovetti-Cramp as Shine
- Alina Foley as Leah
- Dee Bradley Baker as Tala / Nahal
- Melanie Fontana as Session Singer
- Mila Brener as Nila
- Katherine Tokarz as Guardian of the Mermaid Gem
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