Theo

Theo was a hacker and terrorist that worked for Hans Gruber. He is played by Clarence Gilyard Jr. in Die Hard.

History
Theo is one of the 13 terrorist who hijacks the Nakatomi Plaza building and the team's computer hacker. Theo is weasely, insensitive and arrogant cracking jokes whenever people were killed. Theo and another trrorist, Karl, enter the building via the front entrance with Theo talking about basketball as Karl kills the receptionist. Theo signals the other 11 terrorist that the coast is clear. Theo is present in the boardroom when Hans Gruber is interogating Mr. Takagi about the code to the vault. After Mr. Takagi is shot point blank, Theo explains to Hans that of the seven locks he can cut the first six but the seventh lock is an electro-magnetic seal that can't be cut locally. He fate is unknown but it is possible that he was arrested.