Appearance: Samantha and the Loch Ness Monster
Portrayer: Don Knight
Species: Mortal
Family: Darrin Stephens (cousin)
Frank Stephens (uncle)
Phyllis Stephens (aunt)
Tabitha Stephens (first cousin, once removed)
Adam Stephens (first cousin, once removed)
Samantha Stephens (cousin-in-law)
Residence: Inverness, Scotland

Robbie is Darrin's cousin who lives in Inverness, Scotland. Darrin and Samantha visit him on their 1971 European vacation.

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