Clancy Brown Clancy Brown is the American actor who played Zobral in the episode . He is perhaps best known for his roles in the films " Highlander " , " The Shawshank Redemption " , and " Starship Troopers " . He is also known for his work as a voice actor , with his best - known voice - over roles being Mr . Krabs on Nickelodeon ' s " SpongeBob SquarePants " and the DC Comics supervillain Lex Luthor on " Superman : The Animated Series " and the " Justice League " cartoons . Personal life . Brown was born in Urbana , Ohio . He graduated from St . Albans School in Washington , DC , and received a BA from Northwestern University in Evanston , Illinois . Brown is the grandson of Congressman Clarence Brown . He is married to Jeanne Johnson , with whom he has two children . They have been married since 1993 . Career . Films . He made his film debut in 1983 ' s " Bad Boys " , which also starred actor Alan Ruck . The following year he played the character of Rawhide in the cult classic " The Adventures of Buckaroo Banzai in the 8th Dimension " . Co - starring with him in this film were fellow " Star Trek " alumnus Peter Weller ( in the title role ) , Christopher Lloyd , Robert Ito , Vincent Schiavelli , and Jonathan Banks . Brown is perhaps best known for playing Connor MacLeod ' s nemesis , The Kurgan , in the 1986 science fiction film " Highlander " . He is also known for his role as Captain Byron Hadley in the acclaimed , Academy Award - nominated 1994 drama " The Shawshank Redemption " . This film featured many other " Star Trek " alumni in the cast , namely Bob Gunton , William Sadler , Mark Rolston , Jude Ciccolella , Don McManus , Bill Bolender , Dion Anderson , Brian Brophy and Ken Magee . Another of Brown ' s well - known film roles is Sergeant Zim in the 1997 science fiction action adventure " Starship Troopers " . His co - stars in this film included Dina Meyer , Brenda Strong , Lenore Kasdorf , and Bruce Gray . That same year , Brown was seen in the family film " Flubber " , along with actors Christopher McDonald and Wil Wheaton . Brown ' s subsequent film credits include : 1999 ' s " The Hurricane " , with Harris Yulin ; 2002 ' s " The Laramie Project " , featuring Richard Riehle ; and 2006 ' s " The Guardian " , co - starring actor Neal McDonough . He was more recently seen in the 2007 adventure film " Pathfinder " , alongside Karl Urban . He also appeared in the 2009 comedy " The Informant ! " , in which his " Enterprise " co - star Scott Bakula played the second lead . In 2010 , Brown was seen in the remake of the horror film " A Nightmare on Elm Street " , as was Thomas Dekker . Later that year , Brown joined the cast of " Cowboys & Aliens " , a sci - fi / western film scripted and produced by Alex Kurtzman , Roberto Orci , and Damon Lindelof . Fellow " Enterprise " guest star Keith Carradine also has a role in this film . Television . Brown played John Danziger in the short - lived cult science fiction series " Earth 2 " , on which Terry O ' Quinn was a frequent guest performer . In 2003 and 2005 , Brown played Brother Justin Crowe in the HBO series " Carnivàle " . His co - stars on this series included Adrienne Barbeau , K Callan , John Fleck , Robert Knepper , John Carroll Lynch , Scott MacDonald , Diane Salinger , and John Savage . In addition , Brown has appeared on such hit TV series as " ER " ( on which he had a recurring role as Dr . Ellis West ) , " The Practice " , and J . J . Abrams ' " Lost " . In 2010 , Brown starred as Hart Sterling on the legal drama " The Deep End " . The series premiered on ABC in January 2010 with a pilot episode which guest - starred William Schallert and aired through February 25 . On May 14 , 2010 , it was reported by ABC that the series had been canceled . In 2014 , Brown appeared in several episodes of " The Flash " as Gen . Wade Eiling . Voice - over work . Brown is also recognized for his voiceover roles in a number of animated television series . Perhaps his most notable voice over role is that of Mr . Krabs on the popular Nickelodeon cartoon " SpongeBob SquarePants " , a role he has played since the series debuted in 1999 . In addition , Brown was among the many " Star Trek " actors to do voice work on the animated series " Gargoyles " . Others who had voice roles on this show include Jonathan Frakes , Marina Sirtis , Brent Spiner , Kate Mulgrew , Avery Brooks , Nichelle Nichols , Paul Winfield , David Warner , Michael Dorn , and LeVar Burton . Brown voiced Lex Luthor ( a role previously voiced by Michael Bell ) for " Superman : The Animated Series " , " Justice League " , and " Justice League Unlimited " , as well as several associated feature films . Other " Trek " alumni who appeared in the sames episodes of " Superman " as Brown included Victor Brandt , Joanna Cassidy , Michael Dorn , Miguel Ferrer , Castulo Guerra , Sherman Howard ( who previously played Luthor in the live - action series " Superboy " ) , Robert Ito , David L . Lander , Jason Marsden , Andrea Martin , Christopher McDonald , Malcolm McDowell , Charles Napier , Ron Perlman , and John Rubinstein . Those who co - starred with Brown in the " Justice League " series included : Olivia d ' Abo , Seymour Cassel , Jeffrey Combs , Michael Dorn , Robin Atkin Downes , Ashley Edner , Efrain Figueroa , Robert Foxworth , Brian George , Nicholas Guest , Virginia Madsen , Jason Marsden , Richard McGonagle , Stephen McHattie , Michael McKean , Robert Picardo , Mark Rolston , Stephen Root , and David Ogden Stiers . Brown also voiced in the series " Roughnecks : The Starship Troopers Chronicles " , along with James Horan , " The Zeta Project " ( with Diedrich Bader ) , and " Battle Force : Andromeda " , with Jennifer Lien and Kurtwood Smith . He recently voiced Mr . Freeze on " The Batman " ( a character previously voiced by Michael Ansara ) and did voice work in two episodes of Seth MacFarlane ' s " American Dad ! " series on FOX . Brown voiced two characters on Disney ' s animated series " Kim Possible " : Commander Kane , a James T . Kirk parody , appearing with Jeff Bennett , Jennifer Hale , Maurice LaMarche , and Kevin Michael Richardson ; and Yono the Destroyer , opposite Grey DeLisle , Andrea Martin , George Takei , and Frank Welker . Other animated shows he has worked on include " Jackie Chan Adventures " ( as Captain Black and Ratso ) , " Super Robot Monkey Team Hyperforce Go ! " ( as Otto ) , " Avatar : The Last Airbender " ( as Long Feng ) , " Biker Mice from Mars " ( as Cataclysm ) , " Wolverine and the X - Men " ( as Mr . Sinister ) , and " The Spectacular Spider - Man " ( as Rhino , George Stacy , and Alex O ' Hirn ) . His role of George Stacy on the latter series was originally played by James Cromwell in the 2007 film " Spider - Man 3 " . In 2011 , Brown voiced the Human villain Silas in " Transformers : Prime " , a show co - produced by Orci and Kurtzman , and co - starring Frank Welker , Jeffrey Combs and Tony Todd .