South Park and Codename: Kids Next Door/Thomas and Friends: Percy Takes A Plunge Parodies-Featuring Numbuh 4

Cast

 * Numbuh 4 as Percy
 * Kenny McCormick as Henry
 * Stan Marsh as Thomas
 * Terrence and Phillip as Bill and Ben
 * Randy Marsh as Sir Topham Hatt
 * Ringo Starr as UK Narrator
 * George Carlin as US Narrator