Guest Stars Fred Willard as Nil Logan Caren Kaye as Paula Mercer Vicki Lawrence as Betty Logan Dean Butler as Brent Harper David Spielberg as Marc Mercer Mary Cadorette as Darlene Harper José Ferrer as Simon Beck Alana Stewart as Miss Enty Co Starring Teri Hatcher as Amy (Love Boat Mermaid) Debbie Bartlett as Susie (Love Boat Mermaid) Tori Brenno as Maria (Love Boat Mermaid) Macarena as Sheila (Love Boat Mermaid) Nanci Hammond as Jane (Love Boat Mermaid) Debra Johnson as Patti (Love Boat Mermaid) Andrea Moen as Starlight (Love Boat Mermaid) Beth Myatt as Mary Beth (Love Boat Mermaid) Bert Rosario as Julio