Valerie Archer

From Memory Alpha, the free Star Trek reference

For the member of Species 8472 who impersonated this individual, see Valerie Archer (Species 8472).

Commander Valerie Archer was a 24th century Starfleet officer, specialized in the command division.

Following their encounter with the USS Voyager in 2374, a group of Species 8472, on space platforms called Terraspheres, created a simulation of Starfleet Headquarters on Earth. The polymorphed members of Species 8472 were conducting a role-playing mission to better understand their enemy, the Federation and Starfleet. Valerie Archer was one of the officers impersonated by Species 8472. (VOY: "In the Flesh")