Dive into a Gripping Set of Thrillers.

Discover the explosive action thriller series penned by a Special Forces veteran. Get your FREE American Mercenary prequel story The Ranger Objective today. 

"Jason Kasper’s American Mercenary series boils with bold action, exotic locales, and spellbinding intrigue. Not to be missed by fans of Vince Flynn and Brad Thor, Jason Kasper is a name to watch in the thriller world."

-Mark Greaney, #1 New York Times Bestselling Author of the Gray Man series

"Jason Kasper delivers a dark, intensely gripping thrill ride with the American Mercenary series. These unforgettable, action-packed thrillers are perfect for fans of Mitch Rapp, Jason Bourne, and Jack Reacher."

-Steven Konkoly, USA Today Bestselling Author of The Rescue

"The Spider Heist is a nonstop thrill ride...Nothing in this captivating thriller is what it seems. My heart was in my throat until the very end, and once I reached the last word, all I wanted was more."

-Lisa Regan, USA Today and WSJ Bestselling Crime Fiction Author


Jason Kasper

Jason Kasper is the USA Today bestselling author of the Spider Heist, American Mercenary, and Shadow Strike thriller series. Before his writing career he served in the US Army, beginning as a Ranger private and ending as a Green Beret captain. Jason is a West Point graduate and a veteran of the Afghanistan and Iraq wars, and was an avid ultramarathon runner, skydiver, and BASE jumper, all of which inspire his fiction.

Spider Heist Thrillers

American Mercenary Series

American Mercenary Series

Shadow Strike Series


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