Malachi Throne Malachi Throne was an actor from New York who appeared in three episodes of and two episodes of . Throne was Gene Roddenberry ' s first choice for the role of Doctor Philip Boyce for the first " Star Trek " pilot , , however he turned down the role not wanting to play " the third man " next to the hero and his sidekick . However , Throne expressed interest in playing Spock , but Leonard Nimoy was already contracted to play the part by then . Roddenberry finally offered him the chance to provide the voice for the Talosian Keeper ( physically portrayed by Meg Wyllie ) , which Throne accepted . Almost two years later , Throne was cast as Commodore Mendez for the " envelope " portions of " The Menagerie " two - parter . His voice for The Keeper had to be electronically pitch - altered so the audience wouldn ' t recognize it as the same actor who played Mendez . ( " " ) Along with Gene Lesser he submitted a story idea for " Star Trek " called " The V . I . P . s " . It did not go beyond a few bits of correspondence back and forth . He was with Leonard Nimoy for both his first ( the first " Star Trek " pilot , ) and last ( the TNG episode ) " Star Trek " appearances on television . He also appeared in two other productions with Leonard Nimoy : ( 1967 , 1969 , also with Lee Meriwether , Vic Perrin , Ed McCready and Paul Sorenson ) and the TV movie " Assault on the Wayne " ( 1971 , also with Lloyd Haynes and William Windom ) . Throne filmed his scenes for " The Menagerie " between Tuesday and Tuesday on Desilu Stage 9 and 10 . He filmed his scenes for the episodes " Unification I " and " Unification II " on Monday , between Wednesday and Friday , Tuesday , and Thursday on Paramount Stage 9 and 16 . As a boy , he had success in a musical version of " Tom Sawyer " , and he would go on to train as an actor at Brooklyn College and Long Island University . In 1959 , he left the stages of New York to try to make a career in film and television . In 1965 , Throne appeared in the Gene Roddenberry - produced unsold pilot " Police Story " , which also featured Steve Ihnat , Grace Lee Whitney , and DeForest Kelley . Between 1968 and 1969 , Throne starred as " Noah Bain " on the series " It Takes a Thief " , which was produced by Gene Coon . The series featured guest stars Alfred Ryder , George Sawaya , Meg Wyllie , Rosemary Forsyth , Keye Luke , Robert Ito , Mark Lenard , Peter Brocco , Steve Ihnat , Lawrence Montaigne , Roger C . Carmel , Yvonne Craig , Ricardo Montalban , John Hoyt , Erik Holland , Brock Peters , George Takei , Michael Ansara , Teri Garr , Sally Kellerman , Anthony Caruso , Julie Newmar , Joseph Bernard , Whit Bissell , Kenneth Tobey , and William Campbell . Throne was a popular casting choice by producer , and appeared in all of Allen ' s television shows : three episodes of " Voyage to the Bottom of the Sea " ( 1965 - 1967 , with Joseph Ruskin , Robert Sampson and Ron Stein ) , an episode of " Lost in Space " ( 1966 , with Bill Mumy and Ted Cassidy ) , two episodes of " The Time Tunnel " ( 1966 - 1967 , with James Darren , Whit Bissell , Lee Meriwether , John Crawford , Peter Brocco and Perry Lopez ) , and an episode of " Land of the Giants " ( 1970 , with Don Marshall , Joseph Ruskin and Whit Bissell ) . His other television credits include : " The Outer Limits " ( 1964 , with William Shatner , James B . Sikking , Louie Elias , and Lawrence Montaigne ) , the role of " Joseph Ronaugh " on " The Bionic Woman " ( 1975 , with Alan Oppenheimer and Paul Carr ) , the role of " Ali Baba " on " The Krofft Supershow " ( 1976 - 1978 , with Jay Robinson and Frank Welker ) , and " Project U . F . O . " ( 1978 , with Pamelyn Ferdin , Richard Derr , and Whit Bissell ) . In 1995 , Thorne portrayed the role of Centauri Prime Minister Malachi on " Babylon 5 " s Hugo Award - winning episode ( Andreas Katsulas also co - starred in this episode ) . His character ' s assassination allows a war - mongering faction gain control of his planet ' s government . The ensuing war ' s consequences fuel the show ' s narrative arc for the remaining seasons . He also appeared in the TV movies " The Doomsday Flight " ( 1966 , with Celia Lovsky , Bert Remsen , and Michael Sarrazin ) , " Code Name : Heraclitus " ( 1967 , with Ricardo Montalban and Chuck Courtney ) , " Assault on the Wayne " ( 1971 , with Leonard Nimoy , William Windom and John Winston ) , " It ' s a Bird , It ' s a Plane , It ' s Superman " ( 1975 , with Kenneth Mars ) , and " Longarm " ( 1988 , with Daphne Ashbrook , Noble Willingham , and Rene Auberjonois ) . His film credits include the Muhammed Ali biopic " The Greatest " ( 1977 , with David Huddleston , David Clennon , Lloyd Haynes , Skip Homeier , and Paul Winfield ) . In 1992 , Throne portrayed William Campbell , Sr . on " Melrose Place " ; his wife was played by Salome Jens . In 2004 , Throne portrayed Captain Korogh in the fan production " Star Trek : New Voyages " , episode " In Harms Way " , which features " Trek " performers Barbara Luna , William Windom , James Cawley , Jeffery Quinn , Sam Witwer , and Leslie Hoffman . The episode was written by Doug Drexler . Throne passed away at the age of 84 on .