The Army is growing in HBO’s miniseries Lewis And Clark. Brendan Fletcher (Gracepoint), James Cutler (Kick- Ass 2), Rob Aramayo, Devin Harjes (Daredevil, Gotham), Tim Plester, Tyson Ritter, and David Wilmot have been cast as members of the Corps of Discovery, the expeditionary group led by Meriwether Lewis and William Clark, played by Casey Affleck and Matthias Schoenaerts, respectively.

Based on the book Undaunted Courage, by Stephen E. Ambrose, Lewis And Clark tells the story of America’s first contact with the land and native tribes of the country west of the Mississippi River. The miniseries follows the epic journey of the Corps of Discovery and its captains, Lewis (Affleck) and Clark (Schoenaerts), who traverse uncharted territory on a mission to deliver President Jefferson’s message of sovereignty as they search for his fabled all-water route to the Pacific. Cast also includes Josh Stewart and Parker Croft.

Lewis And Clark is executive produced by Tom Hanks, Gary Goetzman, Edward Norton, Brad Pitt, Dede Gardner, Tim Kelly and Adam Leipzig.

Cutler is repped by Untitled Entertainment and Bloom Hergott; Fletcher is repped by Tyman Stewart at The Characters Agency and LINK; Harjes is repped by David Williams Management.