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Lucas Till was born on August 10, 1990 in Fort Hood, Texas, U.S. He is an American actor and singer. He is best known for his roles as Alex Summers / Havok in the X-Men film series, Kyle Pratt in the science fiction film The Fourth Kind, and Scott Howard in the 2010 remake of the 1984 film The Adventures of Sharkboy and Lavagirl in 3-D.