Question: What other real life boxer did Mike Williams act with in Rocky V?

full_context: Document 1: Rocky: 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.
Document 2: Rocky Balboa: 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.
Document 3: Mike Williams (wide receiver, born 1994): Michael K. Williams (born October 4, 1994) is an American football wide receiver for the Los Angeles Chargers of the National Football League (NFL). He played college football at Clemson, and was drafted by the Chargers seventh overall in the 2017 NFL Draft.
Document 4: Mike Williams (boxer): Michael Anthony Williams (born June 16, 1962) is an American actor and former professional boxer who competed from 1984 to 2000. He is most notable for portraying fictional boxer Union Cane in the 1990 film "Rocky V".
Document 5: Rocky IV: Rocky IV is a 1985 American sports drama film written, directed by, and starring Sylvester Stallone. The film co-stars Dolph Lundgren, Burt Young, Talia Shire, Carl Weathers, Tony Burton, Brigitte Nielsen, and Michael Pataki. "Rocky IV" remained the highest grossing sports movie for 24 years before it was overtaken by "The Blind Side". It is the fourth and most financially successful entry in the "Rocky" film series.
Document 6: Mike Tyson: Michael Gerard Tyson ( ; born June 30, 1966) is an American former professional boxer who competed from 1985 to 2005. He reigned as the undisputed world heavyweight champion and holds the record as the youngest boxer to win a heavyweight title at 20 years, 4 months and 22 days old. Tyson won his first 19 professional fights by knockout, 12 of them in the first round. He won the WBC title in 1986 after stopping Trevor Berbick in two rounds, and added the WBA and IBF titles after defeating James Smith and Tony Tucker in 1987. This made Tyson the first heavyweight boxer to simultaneously hold the WBA, WBC and IBF titles, and the only heavyweight to successively unify them.
Document 7: Rocky (film series): 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.
Document 8: Mike McCallum: Mike McCallum (born 7 December 1956) is a Jamaican former professional boxer who competed from 1981 to 1997. He is a three-weight world champion, having held the WBA super welterweight title from 1984 to 1988; the WBA middleweight title from 1989 to 1991; and the WBC light heavyweight title from 1994 to 1995.
Document 9: Sylvester Stallone: Michael Sylvester "Sly" Gardenzio Stallone ( ; ] ; born July 6, 1946) is an American actor and filmmaker. He is well known for his Hollywood action roles, including boxer Rocky Balboa, the title character of the "Rocky" series' seven films from 1976 to 2015; soldier John Rambo from the four "Rambo" films, released between 1982 and 2008; and Barney Ross in the three "The Expendables" films from 2010 to 2014. He wrote or co-wrote most of the 14 films in all three franchises, and directed many of the films.
Document 10: Tommy Morrison: Tommy David Morrison (January 2, 1969 – September 1, 2013) was an American professional boxer who competed from 1988 to 1996, and held the WBO heavyweight title in 1993. He retired from boxing in 1996 when he tested positive for HIV, but returned for two more fights in 2007 and 2008. Morrison is also known for starring alongside Sylvester Stallone in the 1990 film "Rocky V".
Document 11: Danny Williams (boxer): Daniel Peter "Danny" Williams (born 13 July 1973) is a British professional boxer. A veteran of the sport since 1995, he held the British heavyweight title twice between 2000 and 2010, and the Commonwealth heavyweight title twice between 1999 and 2006. Williams is best known for scoring an upset knockout victory against Mike Tyson in 2004, which earned him a mandatory WBC heavyweight title opportunity. In the same year, he challenged then-reigning champion Vitali Klitschko, but was stopped in eight rounds.
Document 12: Roy Jones Jr.: Roy Levesta Jones Jr. (born January 16, 1969) is an American professional boxer, boxing commentator, boxing trainer, rapper, and actor who holds dual American and Russian citizenship. He is a six-time former world champion in four weight classes, having held titles at middleweight, super middleweight, light heavyweight, and heavyweight; and is the only boxer in history to start his professional career at light middleweight and go on to win a heavyweight title. As an amateur he represented the United States at the 1988 Summer Olympics, winning a silver medal in the light middleweight division.
Document 13: Rocky V: Rocky V is a 1990 American sports drama film. It is the fifth film in the "Rocky" series, written by and starring Sylvester Stallone, and co-starring Talia Shire, Stallone's real-life son Sage, and real-life boxer Tommy Morrison, with Morrison in the role of Tommy Gunn, a talented yet raw boxer. Sage played Robert Balboa, whose relationship with his famous father is explored. After Stallone directed the second through fourth films in the series, "Rocky V" saw the return of John G. Avildsen, whose direction of "Rocky" won him an Academy Award for Best Directing.
Document 14: Mickey Hughes (boxer): Mickey Hughes (born 13 June 1962 in London), is an English amateur welterweight and professional welter/light middleweight boxer of the 1980s, and 1990s who as an amateur won the 1984 Amateur Boxing Association of England welterweight title, against Robert Thomas (Gloucester ABC), boxing out of St Pancras ABC , and represented Great Britain at welterweight in Boxing at the 1984 Summer Olympics in Los Angeles, United States, defeating Paul Rasamimanana of Madagascar, and losing to Rudel Obreja of Romania, and as a professional won the British Boxing Board of Control (BBBofC) British light middleweight, and Commonwealth light middleweight title, and was a challenger for the BBBofC Southern Area welterweight title against Trevor Smith, Commonwealth welterweight title against Donovan Boucher, BBBofC British welterweight title against Del Bryan, and World Boxing Association (WBA) Inter-Continental light middleweight title against Shaun Cummins, his professional fighting weight varied from 146 lb , i.e. welterweight to 154 lb , i.e. light middleweight.
Document 15: Andre Ward: Andre Michael Ward (born February 23, 1984) is an American former professional boxer who competed from 2004 to 2017. He retired with an undefeated record and held eight world titles in two weight classes, including the unified WBA (Super), WBC, "Ring" magazine, and lineal super middleweight titles between 2009 and 2015; and the unified WBA (Undisputed), IBF, WBO, and "Ring" light heavyweight titles between 2016 and 2017. During his reign as light heavyweight champion, Ward was ranked as the world's best active boxer, pound for pound, by "The Ring" magazine and the Transnational Boxing Rankings Board (TBRB), as well as the world's best active boxer in the division by "The Ring", the TBRB, and BoxRec.
ground_truth: Tommy Morrison