1. A mermaid seeks human love. 2. A pilot returns to World War II to prevent his father's death. Roarke: Ricardo Montalban. Tattoo: Herve Villechaize. David Chilton: Tom Wopat. Rosacker: Robert Mandan. Eddie Allen: Tom Demenkoff. Betty: Dolly Martin. Harvey: Hal England. Jerome: Chip Lucia. Bradley: Brian Baker. Belinda: Janet Hillis. Freddy: Bobb Hopkins.