John Glover John Glover is the Tony Award - winning , Emmy Award - nominated actor from Salisbury , Maryland , who played Verad Dax in the episode . Glover has earned several nominations for guest appearances on such television shows as ( starring Kelsey Grammer , in an episode with Dan Butler and Richard Poe ) and ( starring Corbin Bernsen and Larry Drake , in an episode with George Hearn , Jennifer Hetrick , Diana Muldaur , and Concetta Tomei ) . He also played the Devil on the cult series , co - starring Lori Petty . However , he is currently best known for his role as on the television series ( with Phil Morris ) , whom he played from 2001 through 2008 and has returned as a recurring guest during the final season of the show . He is widely recognized for his roles in such films as " 52 Pick - Up " ( 1986 , with Clarence Williams III and Alex Henteloff ) , " Scrooged " ( 1988 , with Alfre Woodard , Michael J . Pollard , Roy Brocksmith , and Logan Ramsey ) , and " Payback " ( 1999 , with Gregg Henry , Jeff Imada and Alex Henteloff , and the director ' s cut of which featured Sally Kellerman in a voice - only role ) . He also played Daniel Clamp in 1990 ' s " Gremlins 2 : The New Batch " , in which he co - starred alongside Robert Picardo ( The Doctor on ) . In addition , this film featured fellow " Star Trek " alumni Zach Galligan , Dick Miller , Keye Luke , Ron Fassler , Jerry Goldsmith , Kenneth Tobey , and Henry Gibson . One of Glover ' s earliest film appearances was a small role in ' s classic 1977 comedy , " Annie Hall " , in which Mark Lenard also appeared . Glover co - starred with guest actor Peter Weller in two films : 1986 ' s " A Killing Affair " ( with Bill Smitrovich ) and 1990 ' s " RoboCop 2 " ( with Robert DoQui , Mark Rolston , Stephen Lee , Jeff McCarthy , Gabriel Damon , and Bill Bolender ) . Glover and Weller also worked together in the 1986 television movie " Apology " . Glover received his first Emmy nomination for his work in the 1985 TV movie " An Early Frost " , which co - starred Terry O ' Quinn and Scott Jaeck . Glover then worked with TNG actor Jonathan Frakes in the 1987 mini - series " Nutcracker : Money , Madness , and Murder " , for which he received another Emmy Award nomination . The movie featured Frank Military , Daniel Hugh Kelly , George D . Wallace , and Noble Willingham , as well . In 1990 , Glover co - starred with actor Robert Beltran in the television movie " El Diablo " , also featuring Jim Beaver . Besides his film and television work , Glover has performed in many stage productions . He has been a fixture of the Broadway stage since 1972 , when he began appearing in a number of plays as part of the New Phoenix Repertory Company . For the first two of these plays , " The Great God Brown " and " Don Juan " , he worked along with James Greene . Glover won a Drama Desk Award for his performance in " The Great God Brown " . Glover ' s later Broadway credits include " The Importance of Being Earnest " , the ill - fated " Frankenstein " , and " Design for Living " , in which he worked with Frank Langella . Glover won the 1995 Tony Award as Best Featured Actor in a Play for his performance as James and John Jeckyll in " Love ! Valour ! Compassion ! " He reprised both roles for the 1997 film of the same name , which starred Jason Alexander . Glover and Alexander again worked together in the 2001 film " On Edge " , along with Suzie Plakson . Glover voiced the character of in several episodes of ( alongside Gary Frank , Loren Lester , Brock Peters and Peter Mark Richman ) and reprised the role on episodes of " Superman : The Animated Series " ( with Paul Williams and Corey Burton ) and " The New Batman Adventures " ( with Loren Lester , Malachi Throne , Steven Weber and Paul Williams ) . Frank Gorshin , who guest - starred as Bele in , played the character in the of the 1960s . Glover himself made a cameo as a mad scientist in the the 1997 film . This makes him one of only five actors who has appeared on both " Batman : The Animated Series " and a live - action film based on the Batman comics - the four others being Rene Auberjonois , Ed Begley , Jr . , Vincent Schiavelli , and U . S . Senator Patrick Leahy . In addition , Glover has guest - starred on such television series as " Miami Vice " , " Murder , She Wrote " ( two episodes , including one with Len Cariou ) , " Tales from the Crypt " ( with Aron Eisenberg , Graham Jarvis , and Jason Marsden ) , " Homicide : Life on the Street " ( starring Michelle Forbes ) , and " Brothers & Sisters " ( with Scott Klace , John Rubinstein , and Michael Buchman Silver ) . He has also made recurring appearances on the television drama series " " ( developed and produced by Rene Balcer ) and " Numb3rs " . On the former , he appeared in an episode with Olivia d ' Abo ; on the latter , he worked with Keone Young . Glover appeared on NBC ' s science fiction drama series " Heroes " as Samson Gray , the father of Zachary Quinto ' s Sylar . He joins a long line of " Star Trek " alumni to appear on the show , which includes George Takei , Nichelle Nichols , Malcolm McDowell , Michael Dorn , Dominic Keating , Cristine Rose , Erick Avari , Joanna Cassidy , and Greg Grunberg . Other " Star Trek " connections . Additional projects in which Glover appeared with other " Star Trek " performers include :