<Li> Brent Spiner as Dr. Brackish Okun, the unkempt and highly excitable scientist in charge of research at Area 51 . Dr. Okun appeared to have been killed by an alien but returned in the sequel, where it was revealed that the character had merely been in a coma . The character's appearance and verbal style are based upon those of visual effects supervisor Jeffrey A. Okun, with whom Emmerich had worked on Stargate . </Li> <Li> James Duval as Miguel Casse . </Li> <Li> Bill Smitrovich as Lt. Col. Watson . </Li> <Li> Harry Connick Jr. as Marine Captain Jimmy Wilder . Connick took over the part from Matthew Perry, originally cast in the role . </Li>

Who is the main character in independence day