Summer PERSON@1 -LRB- born July NUMBER@1 , NUMBER@2 -RRB- is an MISC@1 dancer and actress , known for playing River PERSON@2 in the short-lived science fiction series Firefly and follow-up movie Serenity , and for playing PERSON@3 in the series Terminator : The PERSON@4 Chronicles .

Summer Glau -LRB- born July NUMBER@1 , NUMBER@2 in LOCATION@1 , LOCATION@2 -RRB- is an MISC@1 dancer and actress . She is best known for playing as PERSON@5 in the science fiction television series Firefly and movie Serenity .
