(written from a Production point of view)
Sherman Howard (born 11 June 1949; age 70) is the actor who made three appearances in episodes of Star Trek: The Next Generation, Star Trek: Deep Space Nine and Star Trek: Voyager. In addition he provided additional voices for the video game Star Trek: Armada II.
Howard, who was born as Howard Lee Sherman in Chicago, Illinois, was once a cast member of the TV series Ryan's Hope, which also starred Kate Mulgrew. However, he is best known as Lex Luthor on three of the four seasons of TV's Superboy, (which became The Adventures of Superboy). DS9's Salome Jens played Martha Kent in the series. He was considered for the same role on Superman: The Animated Series, but Clancy Brown was cast instead.
Howard also appeared in the films Day of the Dead, Lethal Weapon 2, K-9, and Casualties of War, as well as the Stephen King mini-series The Stand. Lately, however, he has been primarily supplying his voice to numerous video games, although he did appear in Eulogy, which featured Rene Auberjonois of DS9. He also voiced the villain Blight in Batman Beyond, the arch-nemesis to the title character. George Takei voiced his associate in the pilot episode. On Seinfeld, he was "cured" when Kramer's Junior Mint fell inside of him during surgery. He was inspired by George (Jason Alexander) buying his art.
More recently, Howard lent his voice to the characters Oliver Philips and Aldous Worthington in the 2010 video game Red Dead Redemption, with Anthony De Longis and Barry Lynch. In 2011 he had a guest role as Chip Shooter Haight in the Homeland episode "The Good Soldier", starring Maury Sterling.