Tessa occasionally meet MacLeod 's previous Immortal lovers . In " The Lady and the Tiger " , she immediately dislike Amanda ( played by Elizabeth Gracen ) and the script note that " ... sparks fly between the two women " . Although she quickly earn Amanda 's respect , Tessa feel like she have to compete with Amanda , while Amanda comment that Tessa is " ... quite refreshing in a gauche sort of way . " Gracen played Amanda 's interaction with Tessa ambiguously and a little flirtatiously . Tessa is usually jealous of MacLeod 's past lovers , but acknowledge in " Saving Grace " that " ... it would take me several lifetimes to find out everything in Duncan 's past . I know there 've been others , but I never thought I would meet one of them . "