<Tr> <Th> Years active </Th> <Td> 2014--present </Td> </Tr> <Tr> <Th> Known for </Th> <Td> Madam Secretary, The Intern </Td> </Tr> <P> Wallis Currie - Wood (born December 12, 1991) is an American actress . She plays Stephanie "Stevie" McCord in the CBS drama Madam Secretary . </P> <P> Wallis Currie - Wood was born December 12, 1991 in Austin, Texas . </P>

Who plays the eldest daughter in madam secretary