As a part of their daily lives, Lizabeth and her family members masquerade as the traveling circus "Marina Underwater Pokémon Show". In this show, they are notable because they combine Psychic-type Pokémon abilities with Water-type Pokémon abilities to create a spectacle in which the Water Pokémon can jump through floating spheres of water generated by Psychic.
In the Sinnoh region games, Lizabeth made a brief cameo as a Pokémon Trainer situated on Route 220. True to form, this version of Lizabeth used Water-type Pokémon such as Seaking, Buizel and Medicham.
Gorebyss is Lizabeth's only known Pokémon, and is used notably within her Magic show routine. It appears when Max attempts to take a drink from one of the floating spheres of water. Gorebyss plunges out of the water, startling Max into falling over.
Despite the fact that Lizabeth was referred to by her Japanese name within Pokémon Diamond and Pearl, the English translators did not notice the relevance of the character's name, and thus they renamed her as Katelyn.