When Mabel befriends a cute Merman trapped in the deep end of the public pool, she's determined to return him to his family in the ocean - even though that means her whirlwind.
Cast Appearances
Alex Hirsch
voices Grunkle Stan
Jason Ritter
voices Dipper Pines
Kristen Schaal
voices Mabel Pines
Linda Cardellini
voices Wendy
Alex Hirsch
voices SoosEpisode Discussion
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