Himself - Geographer (2 Episodes)

Himself - Historian (2 Episodes)

Himself - Mandan-Hidatsa (2 Episodes)

Patrick Gass (2 Episodes)

Herself - Writer (2 Episodes)

Himself - Writer (2 Episodes)

Joseph Whitehouse (2 Episodes)

Herself - Descendant of Twisted Hair (2 Episodes)

Himself - Historian (2 Episodes)

William Clark (voice) (2 Episodes)

Narrator (voice) (2 Episodes)

Thomas Jefferson (voice) (2 Episodes)

Merriwether Lewis (voice) (2 Episodes)

John Ordway (voice) (2 Episodes)

Himself - Writer (2 Episodes)