Geoffreys appeared in several horror and teen films in the 1980s, most notably Heaven Help Us (1985) as well as Fraternity Vacation and 976-EVIL with the director/actor Robert Englund from (A Nightmare On Elm Street) in 1989. He also played a supporting part in the critically acclaimed drama At Close Range in 1986. He is best known for playing the creepy "Evil Ed" in the 1985 vampire horror classic Fright Night starring Roddy McDowall, william Ragsdale, and Chris Sarandon. Two of Geoffreys' lines from that film became catch phrases in the mid-1980s: "To what do I owe this dubious pleasure?" and "You're so cool, Brewster!" Geoffreys refused to appear in the Fright Night sequel.
Born Stephen Geoffrey Miller in Cincinnati, Ohio, Geoffreys first began acting on the stage. In 1984, he was nominated for Broadway's Tony Award for "Best Performance by a Featured Actor in a Musical" for his performance in a play based on The Human Comedy. For this role, he won the Theatre World Award in 1984.
During the 1990s, Geoffreys appeared for several years in gay pornographic movies, using the alias Sam Ritter.
Geoffreys returned to horror in a supporting role as "Mr. Putski" in the independent film Sick Girl, released in October 2007, after an almost 9-year absence from mainstream film. He went on to play a lead role in the horror film Do Not Disturb. He later appeared in the horror film Emerging Past, which also featured actor Brooke McCarter of The Lost Boys fame. As part of the Mad Monster Party on 28 March 2015, Geoffreys wore his Evil Ed costume.
