<Tr> <Th> Years active </Th> <Td> 1991--present </Td> </Tr> <Tr> <Th> Spouse (s) </Th> <Td> Martin Katz </Td> </Tr> <P> Susanna Thompson (born January 27, 1958) is an American actress . She is known for her roles in films Little Giants (1994), Ghosts of Mississippi (1996), Random Hearts (1999) and Dragonfly (2002), and as Karen Sammler on ABC drama series Once and Again (1999--2002). From 2012 to 2014, Thompson starred as Moira Queen as a regular cast member in the CW series Arrow . </P> <P> Thompson received a Dramatic Award for her role as Luisa in A Shayna Maidel . She was also nominated for Best Actress by the San Diego Critics Circle for her role in Agnes of God . She may be best known for her television work, which includes playing Karen Sammler on Once and Again, Michelle Generoo in an episode of The X-Files and a recurring role as the Borg Queen in the Star Trek: Voyager two - part episodes "Dark Frontier" (1999) and "Unimatrix Zero" (2000). Thompson also portrayed Denise Hydecker in the 1998 made - for - TV movie The Lake . </P>

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