He shrinks random people to add to his terrarium, "The Wall". Mary Mack as Jesse: Terry's replicant who is generally kind and wants to fit into human society. Sagan McMahan[lower-alpha 2] as The Pupa: An infant alien linked with the titular Solar Opposites who will one day evolve into its true form and terraform the Earth into a copy of the Shlorp homeworld for the Shlorp ruling class, using the data stored in its DNA.