Question: What actor portrayed the main professional boxer who appeared in the seven movie series, including "Creed" and "Rocky Balboa"?
Context: Rocky is a series of boxing films based on the eponymous, fictional character Rocky Balboa, played in each film by Sylvester Stallone.  The films by order of release date are: "Rocky" (1976), "Rocky II" (1979), "Rocky III" (1982), "Rocky IV" (1985), "Rocky V" (1990), "Rocky Balboa" (2006) and "Creed" (2015).  The film series has grossed more than $1.4 billion at the worldwide box office. Creed is a 2015 American sports drama film directed by Ryan Coogler and written by Coogler and Aaron Covington.  A spin-off and sequel to the "Rocky" film series, the film stars Michael B. Jordan as Adonis Johnson Creed, Apollo Creed's son, with Sylvester Stallone reprising the role of Rocky Balboa.  It also features Tessa Thompson, Phylicia Rashād, Tony Bellew and Graham McTavish.  The film reunites Jordan with "Fruitvale Station" writer/director Coogler, as well as Wood Harris, with whom Jordan had worked on "The Wire". Robert "Rocky" Balboa is the title character of the "Rocky" series.  The character was created by Sylvester Stallone, who also portrayed him in all seven "Rocky" films.  He is depicted as an everyman who started out by going the distance and overcoming obstacles that had occurred in his life and career as a professional boxer.  While he is loosely based on Chuck Wepner, a one-time boxer who fought Muhammad Ali and lost on a TKO in the 15th round, the inspiration for the name, iconography and fighting style came from boxing legend Rocky Marciano. Rocky Balboa also known as Rocky VI is a 2006 American sports drama film written, directed by, and starring Sylvester Stallone.  The film, which features Stallone as underdog boxer Rocky Balboa, is the sixth film in the "Rocky" series that began with the Academy Award-winning "Rocky" thirty years earlier in 1976.  The film portrays an aging Balboa in retirement, a widower living in Philadelphia, and the owner and operator of a local Italian restaurant called "Adrian's," named after his late wife. Adonis "Donnie" Creed, formerly Adonis "Donnie" Johnson, is the main protagonist and title character from the "Rocky" spin-off and sequel "Creed".  Adonis is the illegitimate son of Apollo Creed; the result of an affair by the former heavyweight champion and a woman with the surname Johnson.  Adonis spends the first several years of his life in foster care and juvenile hall, until he is subsequently adopted by Mary Anne Creed, Apollo's widow.  He lives a life of luxury and maintains a stable white collar job, only to abandon it to pursue a lifelong dream of becoming a professional boxer.  He goes to Philadelphia and convinces his late father's friend Rocky Balboa to train and mentor him. Ivan Drago (Russian: Иван Драго ) is a fictional character in the 1985 film "Rocky IV", in which he is Rocky Balboa's rival and the main antagonist.  He is portrayed by Dolph Lundgren.  Like the Clubber Lang character from "Rocky III", the character and his catchphrases have gone on to inspire multiple mentions in popular culture, including in the "Family Guy" episodes "Brian Goes Back to College" and "Something, Something, Something, Dark Side", the "Chuck" episodes "Chuck Versus the Final Exam" and "Chuck Versus the Anniversary", and the film "Disaster Movie".  A poll of former heavyweight champions and prominent boxing writers ranked Drago as the third best fighter in the "Rocky" film series. This is a list of characters from the "Rocky" film series, consisting of "Rocky" (1976), "Rocky II" (1979), "Rocky III" (1982), "Rocky IV" (1985), "Rocky V" (1990), "Rocky Balboa" (2006), and "Creed" (2015). Rocky is a 1976 American sports drama film directed by John G. Avildsen and both written by and starring Sylvester Stallone.  It tells the rags to riches American Dream story of Rocky Balboa, an uneducated but kind-hearted working class Italian-American boxer working as a debt collector for a loan shark in the slums of Philadelphia.  Rocky starts out as a small-time club fighter, and later gets a shot at the world heavyweight championship.  The film also stars Talia Shire as Adrian, Burt Young as Adrian's brother Paulie, Burgess Meredith as Rocky's trainer Mickey Goldmill, and Carl Weathers as the champion, Apollo Creed. Tony "Duke" Evers is a fictional character from the "Rocky" films, initially portrayed as the manager/trainer to Apollo Creed before eventually becoming the manager to Rocky Balboa.  He was portrayed by Tony Burton and is one of only four characters (along with Rocky, Paulie Pennino, and Stu Nahan) to have been featured in the original six "Rocky" films. Apollo Creed is a fictional character from the "Rocky" films, initially portrayed as the undisputed heavyweight champion of the world.  He was played by Carl Weathers.  He is a tough but agile African-American boxer.  The character was inspired by the real-life champion Muhammad Ali, having what one author remarked as the same "brash, vocal, [and] theatrical" personality.  Protagonist Rocky Balboa, Creed's rival in "Rocky" and "Rocky II", faces underdog odds (five-to-one in "Rocky II") and views Creed with respect, pointedly refusing the prodding of a reporter to "trash talk" against Creed by laconically remarking, "He's great."
Answer: Sylvester Stallone