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Supergirl: Babylon 5 Actor Bruce Boxleitner Boards S4 as Spiner Exits

Earlier this month, Star Trek: The Next Generation alum Brent Spiner joined Supergirl Season 4 as the recurring character Vice President Baker. Now, due to scheduling conflicts stemming from a family-related situation, Spiner has been forced to back out of the role.

According to The Hollywood Reporter, Babylon 5 alum Bruce Boxleitner will replace Spiner as the vice president in Supergirl's forthcoming season. In addition to his work on Babylon 5, Boxleitner is known for his major role in the Tron franchise, as well as for his appearances in such television shows as Heroes and NCIS.

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Vice President Baker is described as “adept and politically minded," as well as an unlikely leader who “steps up in a big way when his country needs him most.” With Spiner's exit, it will now be Boxleitner who steps in to assume the role of second-in-command to Lynda Carter's President Olivia Marsdin.

Joining Boxleitner in his Supergirl debut will be fellow series newcomers David Ajala as Manchester Black, Nicole Maines as transgender superhero Dreamer, Sam Witwer as Agent Liberty, April Parker Jones as Colonel Haley, Rohna Mitra as Mercy Graves and Robert Baker as Mercy's enforcer Otis. Additionally, Jesse Rath, who made his debut as Brainiac 5 in Supergirl's third season, has now been made a series regular.

Starring Melissa Benoist as Kara Danvers, David Harewood as Martian Manhunter, Mehcad Brooks as Jimmy Olsen and Chyler Leigh as Alex Danver, Supergirl returns for its fourth season Sunday, Oct. 14, at 8 p.m. ET/PT on The CW.

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