Sam Witwer not only provides the voice and likeness of Starkiller, he also voices Emperor Palpatine, having earned the part during a read through of the script during development.

Sam Witwer would later provide of the voice of Darth Maul in "Star Wars: The Clone Wars".

In the game, Galen Marek/Starkiller is brought back as a clone and is cloned on Kamino. In "Star Wars: Episode II - Attack of the Clones", Kamino was the planet, which was the location of the cloning facility, where bounty hunter Boba Fett and the clone army were cloned from renowned bounty hunter/Mandalorian warrior Jango Fett. Boba Fett appears in the game.

Rahm Kota mentions being picked up by Starkiller on Malastare despite never being on that planet. In the first game, they fight above, Nar Shaddaa, Starkiller later finds him on Bespin. In this game Starkiller rescues him from execution on Cato Neimoidia.

Han Solo is killed by being impaled upon a light saber, wielded by the protagonist, Starkiller. In Star Wars: Episode VII - The Force Awakens (2015), Solo is killed in the same way, on Starkiller base.