Starkiller (Vader's Apprentice) was a figure released in 2012, part of The Vintage Collection.
Starkiller / Galen Marek (Darth Vader's Apprentice) : Minifigure sw0181
Star Wars The Vintage Collection Starkiller (Vader's Apprentice) Action Figures (3.75”) - Star Wars
Dark Apprentice, Villains Wiki
Galen Marek, Dimensional Heroes Wiki
Galen Marek, Wookieepedia
Galen Marek, The Force Unleashed Wiki
Starkiller (Vader's Apprentice) (37518), Star Wars Merchandise Wiki
Galen Marek, Heroes Wiki
Star Wars The Vintage Collection 3.75 Inch Action Figure (2023 Wave 1A
Star Wars Merchandise Wiki
Star Wars (The Vintage Collection) - Hasbro - Starkiller (Vader's Apprentice) - Expanded Universe