It is the beginning of a four-episode arc that Mr. Ryan described as an "epic battle between Vic and Antwon."

She had a recurring role as Holly in a four-episode arc on MTV show Undressed in its sixth and final season.

He reprised his role as Brainiac in a four-episode arc in the seventh season, and did a cameo voice-over in season eight.

She played Jo Marlowe, the new assistant district attorney for a four-episode arc.

Leight suggested that it is possible Connick, Jr. will return to the show after his initial four-episode arc.

The episode marked the final appearance in Will Ferrell's four-episode arc on the series after first appearing in "Training Day".

He also signed on for a four-episode arc in the ABC television series Pan Am, playing a Yugoslavian attache to the United Nations.

Wyle left the series at the end of the eleventh season, although he returned in guest appearances for a four-episode arc during the twelfth season.

Schreiber joined the cast on January 18, 2007 and shot a four-episode arc.

In 2007, she joined Dexter for a four-episode arc as the serial killer's future mother-in-law.