First Appearance: Once in a Vial
Portrayer: Ron Randell
Species: Warlock
Significant Other(s): Samantha Stephens (ex-girlfriend)

Rollo is an old boyfriend of Samantha's who tries to win her back from Darrin by giving her a love potion. The plan backfires when Endora accidently drinks it and falls in love with Darrin's client, Bo Callahan.

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