Rob Lowe appears during an interview with Andy Warhol
Although she's not yet credited, Gina Gershon appears in the music video Hello Again as a sexy woman who sticks her tongue out, with the letters HELLO written on her tongue.
Basically, Heartbeat City is a collection of videos by The Cars, which was the same thing The Rolling Stones did the previous year with their own video anthology Video Rewind for their Undercover album, that, like The Cars Heartbeat City would do, features new videos and reflected back on older ones.