Eric L. Haney (born August 22, 1952) is a retired member of the United States Army counterterrorist unit, the 1st Special Forces Operational Detachment-Delta (1SFOD-D), more commonly known as Delta Force. In recent years he has been writing on terrorism, guerrilla warfare, and special operations. Haney is the author of Inside Delta Force, a memoir of his time in the elite unit, in which he also writes about his participation in the aborted 1980 Operation Eagle Claw mission to Iran to free American hostages. He was a co-executive producer of the CBS television series The Unit, created by David Mamet and inspired by Haney's special operations experiences. Previously, Haney was a technical consultant on Mamet's 2004 film Spartan, starring Val Kilmer.