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Crazy Girls Undercover is a 2008 B-movie directed by Chris Langman and starring Clive Robertson and Nikki Ziering .
 Clive Robertson, Nikki Ziering
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Clive Robertson, Nikki Ziering