Ensign A. Tamras was a female Human Starfleet sciences division officer who served aboard the Enterprise NX-01 under Captain Jonathan Archer.
In 2153, she was part of a nightmare of T'Pol. In this dream she was attending movie night in the mess hall watching an old Earth movie. (ENT: "Impulse")
Tamras was one of two crewmembers who placed the Xindi-Primate Degra back into his chair aboard his ship after his memory was wiped out by Doctor Phlox. (ENT: "Stratagem")
She had a dinner at the mess hall after the Enterprise crew woke up. (ENT: "Doctor's Orders")
In an alternate timeline 2154, where Jonathan Archer was infected by interspatial parasites, she manned the science station on the bridge when the Xindi destroyed Earth. (ENT: "Twilight")
While Enterprise was in an alternate 1944, Tamras walked through a corridor, unaware Silik was meanwhile above her, clinging onto the ceiling, while camouflaged. (ENT: "Storm Front")
Tamras later attended the Federation Founding Ceremony in 2161.
A holographic duplicate of Tamras from 2161 later appeared in William T. Riker's holodeck adventure of self-reflection in 2370. (ENT: "These Are the Voyages...")