Stealth Elf

 is an American thriller-fantasy video game series, being published by from 2000 until 2008 and Activision since then.

Synopsis
Stealth Elf is a mysterious elf whose family got murdered. Now, she is a vengeful ninja out for revenge.

Video games
Note: the list doesn't include her appearances on the Skylanders video game series.
 * 1) Stealth Elf (2000, released for PC, Mac, PlayStation, PlayStation 2, Nintendo 64, Nintendo GameCube and Sega Dreamcast, GameCube port released in 2001)
 * 2) Stealth Elf’s Revenge (2003, released for PC, Mac, PlayStation 2, Xbox and Nintendo GameCube)
 * 3) Activision Heroes: Unite! (2020, released for PC, Mac, PlayStation 4, Xbox One and Nintendo Switch)
 * 1) Activision Heroes: Unite! (2020, released for PC, Mac, PlayStation 4, Xbox One and Nintendo Switch)

Main

 * Stealth Elf (voiced by Audrey Wasilewski) - an elven ninja who is the series' main protagonist.

Supporting

 * Blake (voiced by Billy West) - a farmer elf who is Stealth Elf's childhood friend.
 * Flynn (voiced by Patrick Warburton) - TBD
 * Trigger Happy (voiced by Charlie Adler) - TBD

Antagonists

 * Mistress Shadow (voiced by Nika Futterman) - a mysterious demon and the first game's main antagonist.
 * The Skull (voiced by Clancy Brown) - a fortold bringer of death and chaos.
 * Count Moneybone (voiced by Mark Hamill) - TBD
 * The Huntress (voiced by Jennifer Hale) - an alternate Stealth Elf and a villainous figure.

Trivia

 * This is the only T-rated game series to get adapted into the Skylanders universe.