 In the two @-@ part finale to series two , " Counterfeit " ( 1994 ) , James Horton ( Peter Hudson ) , a renegade Watcher who believes all Immortals must be eliminated , uses killer Lisa Halle ( Meilani Paul ) to try and kill MacLeod . Lisa undergoes plastic surgery to resemble Tessa and therefore is played by Vandernoot from that point on . MacLeod meets Lisa just after he admitted to himself how much he missed Tessa , and he is stunned by her resemblance with Tessa . Despite knowing that Tessa is dead and cannot return , he eagerly pursues a relationship with Lisa . He eventually admits the truth when he discovers a scar on Lisa 's jaw . Horton kills Lisa on Tessa 's grave before being himself killed by MacLeod . 
 In the two @-@ part finale to series two , " Counterfeit " ( 1994 ) , James Horton ( Peter Hudson ) , a renegade Watcher <a href='null_relcl' title='1'><mark>who</mark></a><a href='uninflect' title='2'><mark>believes</mark></a> all Immortals must be eliminated , <a href='uninflect' title='3'><mark>uses</mark></a> killer Lisa Halle ( Meilani Paul ) to try and kill MacLeod . Lisa undergoes plastic surgery to resemble Tessa and therefore is played by Vandernoot from that point on . MacLeod <a href='uninflect' title='4'><mark>meets</mark></a> Lisa just after he admitted to himself how much he missed Tessa , and he is stunned by her resemblance with Tessa . Despite knowing that Tessa is dead and cannot return , he eagerly <a href='uninflect' title='5'><mark>pursues</mark></a> a relationship with Lisa . He eventually <a href='uninflect' title='6'><mark>admits</mark></a> the truth when he <a href='uninflect' title='7'><mark>discovers</mark></a> a scar on Lisa <a href='null_genetive' title='8'><mark>'s</mark></a>jaw . Horton <a href='uninflect' title='9'><mark>kills</mark></a> Lisa on Tessa <a href='null_genetive' title='10'><mark>'s</mark></a>grave before being himself killed by MacLeod . 
In da two @-@ part finale to series two , " Counterfeit " ( 1994 ) , James Horton ( Peter Hudson ) , a renegade Watcher believe alll Immortals must be eliminated , use killer Lisa Halle ( Meilani Paul ) to try and kill MacLeod . Lisa undergoes plastic surgery to resemble Tessa and therefore is played by Vandernoot from that point on . MacLeod meet Lisa just after he admitted to himself how much he missed Tessa , and he is stunned by her resemblance with Tessa . Despite knowing that Tessa is dead and cannot return , he eagerly pursue a relationship with Lisa . He eventually admit the truth when he discover a scar on Lisa  jaw . Horton kill Lisa on Tessa  grave b4 bein himself killed by MacLeod .