direct at the start of the series, having previously played B'Elanna Torres, also on Voyager. She went on to direct ten episodes of the series. After the first season, most of the series's writers were fired by Braga, except Chris Black who was promoted to co-executive producer for the second season. Former The X-Files and The Lone Gunmen writer John Shiban joined the writing team and was also named co-executive producer. Berman called the recruitment of Shiban a "coup" for the series. Shiban stayed for the second season, while Black left after the third. The fourth season of Enterprise saw a change to the crew's leadership, with Manny Coto taking over as executive producer and showrunner from Braga and Berman. He had joined the writing staff in the third season, and wrote the well-received episode "Similitude". He was a fan of The Original Series and sought to link Enterprise more closely to it. He brought writers Judith and Garfield Reeves-Stevens onto Enterprise, who previously wrote books on the franchise's production, and worked with William Shatner on his Shatnerverse series of Star Trek novels. Braga and Berman remained on staff, with Coto describing the situation as having "three showrunners". Coto set the direction for the final season, while the other two gave notes and feedback. Casting The crew issued a casting call for the main roles in the series, and Keating and Billingsley made immediate impressions on the casting director and staff. Braga said that they knew they were right for those roles "right off the bat". Keating had previously auditioned for a role on Voyager two years prior, but Berman wanted to keep him for a future main role, saying that when he auditioned for Reed the actor had "nailed it", although there were discussions about the accent he should be using, with Keating suggesting one from the north of England which the producers mistook for Scottish. In the end, they chose to go with Keating's natural voice. He also praised the casting processes involving Trinneer, Park and Billingsley, calling the latter "perfect" in his role as Doctor Phlox. Park was not required to audition, but instead was hired on the basis of her performance in a scene she appeared in The WB series Popular alongside Anthony Montgomery – despite that the character was intended to be older until Park was cast. Montgomery had previously auditioned to play Tuvok's son