funding for any prosthetic make-up for the Klingons until The Motion Picture. During The Original Series, it was decided to use them more frequently than the Romulans, whose prosthetics were more expensive. The original ridgeless design was created after suggestions by John Colicos, who based them on Genghis Khan and the people of the 13th and 14th century Mongol Empire. When "Broken Bow" aired, it featured Klingons with forehead ridges, despite the series being set prior to The Original Series. On the episode's script, the old style Klingons were referred to as "type-two" and "semi-Klingons". The storyline was one of several in the fourth season of Enterprise which show runner Manny Coto sought to connect the series to The Original Series. Coto also revealed in an interview with the Chicago Tribune that the episode would see the start of Section 31. The episode also featured the first appearance on-screen of the Rigelians, despite first being mentioned in The Original Series and again in DS9. "Affliction" marks the fifth writing credit of the fourth season for Michael Sussman, while director Michael Grossman had previously directed the episode "Hatchery". Filming took place from December 3, 2004 through to December 12. Several of the standing sets were redressed to appear as the locations on the USS Columbia, including the bridge, Captain's mess and the engineering section. The exterior scenes where Phlox and Hoshi were attacked were filmed on the Paramount lot in Los Angeles. As the New York streets backlot had already been used earlier in the season for the opening episode "Storm Front", this sequence was instead filmed in the area between the studio's Administration building and a building which had previously doubled for the high school in the sitcom Happy Days. Casting James Avery was cast as the Klingon General K'Vagh. He underwent a three-hour make-up process for the role, something he later described as a nightmare. He had previously been involved with Star Trek in 1987, when he was the runner up to Michael Dorn to be cast as Worf in The Next Generation. He became better known as Phil Banks in The Fresh Prince of Bel-Air. "Affliction" also featured a cameo by Marc Worden as a Klingon prisoner, who had previously appeared in the Deep Space Nine episodes "Sons and Daughters" and "You Are Cordially Invited" as Worf's son, Alexander Rozhenko. John Schuck was cast as the Klingon doctor