Gemma

Pre-Venjix
Gemma was one of the captive phenoms in 'Alphabet Soup' along with her twin brother, Gem. Both speak in conjoined sentences with a high level of energy. They attempted to befriend the solitary Dr. K and even gave her a birthday present, even though they knew, she didn't like them. She and her brother were the original testers for the prototype ranger gear for Project Ranger. Later on, Dr. K discovers that they were being deceived into staying in the Alphabet Soup facility, and tries to get them out of the facility only to face dire consequences. When Venjix gets past Alphabet Soup and seeps into the world, she and her brother help Dr. K get out of the facility. She was last seen with her brother running off to collect the classified Gold and Silver series bio-suits before a section of Alphabet Soup collapsed behind them. Though they were thought to have died, a pair of mysterious Gold and Silver rangers, the ranger series' which the twins were attempting to retrieve before they disappeared, were seen together in Episode 14, aiding the Rangers against Venjix's attack.

Corinth City
Gemma is Ranger Operator Series Silver (Ranger Silver). She has the series 8 Engine Cell Chip used for the Tiger Jet and Whale Zord. Though numbered '8', she is the seventh member of the team. She is numbered this because her zord is numbered 8 hence her current number.

After defending the rangers from several more Venjix's assaults, the Gold and Silver rangers offered to give the others a ride back to Corinth. It is within the city that it is confirmed that Gem and Gemma are indeed the mysterious rangers, and the two are subsequently reunited with a teary-eyed Dr. K.

Arsenal

 * Engine Cell Chip series 8
 * Engine Cell Chip series 9
 * SkyShift Morpher
 * Cloud Hatchet
 * Ranger Prototype Series Covert Infantry Bio-suit series Silver

Zord Attack Vehicles

 * Tiger Jet
 * Whale Zord