Mazar made appearances in seasons 4 through 8 and is credited as a special guest star.
Melissa Gold (Perrey Reeves) and Lloyd (Rex Lee) have recurring roles in the first two seasons.
Johnny is a C-list actor who was in the fictional show Viking Quest during his younger days.
His role in the new fictional hit show Five Towns had begun to resurrect his fame and career, although he still received less acknowledgment than he would have liked for it.
Signed on is indie director Billy Walsh (Rhys Coiro), who comes into immediate conflict with E.
Eventually their differences are put aside and the season ends with the crew leaving for New York to start production on Queens Boulevard, with E having become Vince's official manager (with salary).
Vince's next project is decided halfway through the season: Queens Boulevard.
The show is known for its array of famous guests, having featured several actors, athletes, and other celebrities in guest star and cameo roles, often playing fictionalized versions of themselves.
To be more satirical of the Hollywood lifestyle, a fictional approach was chosen rather than a straight documentary in order to keep the content light, and avoid directly depicting Wahlberg's violent past.
Mark Wahlberg and Stephen Levinson served as the show's executive producers, and its premise is loosely based on Wahlberg's experiences as an up-and-coming film star.
The series deals with themes of male friendship and real-life situations in modern-day Hollywood.