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Galaxy Wars is an original comic created and published by Scholastic and based off Ben 10: Ultimate Alien.
- Ben Tennyson
- Gwen Tennyson
- Kevin Levin
- Cooper Daniels
- Julie Yamamoto
- Max Tennyson
- General Stratus
- Cooper appears on the cover and is described in the book as having his Alien Force appearance.
- Cooper's 16th birthday occurs during the book even though he is 15 years old in the series; one year younger than Ben and Gwen.
- On the first page of Chapter 1, Kevin's hair is incorrectly stated to be brown.
- Galvanic Mechamorph is misspelled "Galvanic Mechomorph".
- The Ultimatrix is misspelled "Ultrimatrix" throughout the book.
- Diamondhead is described as having his original series outfit.
- Ship's Antarian Obliterator form is referred to as a Galvani Gunship.
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