For months, we are teased that the Purple Ranger is a woman, but as it turns out, just like in Zyuden Sentai Kyoryuger, the Purple Ranger is man, which is then succeeded by a woman.
The Purple Ranger is an old man from New Zealand named Albert (played by Arthur Ranford) who possesses the Purple Energem. He transforms into the Purple Ranger in the series, but he is scared to fight. His debut also revealed that Keeper has the ability to break the bond between human and Energem.
Because of this, Sledge use this chance to possess the Purple Energem and capture Keeper in his ship. Rescuing Keeper alone is Kendall who finds the Purple Energem and finally transform into the Purple Ranger. The story arc also marked the debut of the Plesio Zord, which the Ranger use to travel back to Amber Beach.
[Source: YellowAccel of RangerCrew via Tokunation]