The voyage on the Rivers of America around Tom Sawyer Island features pre-recorded narration by a riverboat guide voiced by Thurl Ravenscroft, another actor portraying Mark Twain, who speaks of his days piloting a riverboat, and by the (not present) "captain" of the ship, voiced by Disney voice actor Stephen Stanton.
Stephen King | Stephen Sondheim | Stephen Fry | Stephen Harper | Stephen Hawking | Stephen Stills | Stephen | Stephen Frears | Stephen Crane | Stephen Foster | St. Stephen's College, Delhi | Stephen Hendry | Stephen Gardiner | Stanton | Stephen Rea | Stephen Jay Gould | Stephen F. Austin | Stephen Colbert | Stephen Breyer | Elizabeth Cady Stanton | Stephen Thomas Erlewine | Stephen Merchant | Stephen Chow | Stanton, California | Marcus Stephen | Stephen Spender | Stephen Lewis | Stephen Kovacevich | James Fitzjames Stephen | William Stanton |
Grand Moff Tarkin, real name Wilhuff Tarkin and also known as Governor Tarkin, is a fictional character in the Star Wars universe, portrayed by Peter Cushing and Wayne Pygram and voiced by Stephen Stanton.
In addition to the regular cast, voice actor Max Burkholder, voice actor Phil LaMarr, actor Rob Lowe, actor Ted McGinley, voice actor Stephen Stanton, actor Connor Trinneer, voice actress Audrey Wasilewski, actor George Wendt (who voiced Norm Peterson in the episode) and voice actor Dave Wittenberg (who voiced Woody Boyd in the episode, originally played by Woody Harrelson) guest starred in the episode.