Notable Roles: Pulp Fiction (1994); Face/Off (1997); Grease (1978); Saturday Night Fever (1977)

His film career has had its ups and downs, but throughout his career John Travolta's roles helped drastically alter male attire. Personal life aside, John Travolta's style defined the mid to late 1970s with Saturday Night Fever, made a ponytail look good in Pulp Fiction, and forever cemented the '50s biker style as cool in Grease.