After a year of playing the good guy on Fox’s upstart nighttime drama “Melrose Place” (1992-1999), actor Thomas Calabro suddenly find his character doing an about-face, becoming the man viewers loved to hate. After years of bit parts in movies and on television, Calabro finally had a role he could sink his teeth into; one that endeared the native New Yorker to millions of viewers, despite his weasel-like moves onscreen. Unlike many of his co-stars, however, Calabro was unable to build off his success from “Melrose” after the show went off the air, though he did remain a viable and