(written from a Production point of view)
Michael Mack is the actor who played Romulan Commander Sirol in the Star Trek: The Next Generation seventh season episode "The Pegasus". One year later he appeared as Ensign Hayes in Star Trek Generations. As Sirol in "The Pegasus", Mack became the first writing intern to act on the show.
Mack was a regular on the short-lived PBS series Powerhouse, playing the role of Kevin. His other roles include the villainous John Moesby in the 1987 science fiction film Outerworld, Dr. Darcy in a 1996 episode of Beverly Hills, 90210 (with Ann Gillespie and Julie Parrish), Sal the Janitor in the 1996 film Sunset Park, Secret Service Agent Randy in a 2003 episode of The West Wing (also featuring Steven Culp and Billy Mayo), Special Agent Marcus Lemmel in a 2003 episode of The Wire, the "Sophisticated Man" who can't do the Electric Slide in Chris Rock's 2003 film Head of State (featuring Reg E. Cathey and Jude Ciccolella), and Dr. Johnston in HBO's Emmy Award-winning 2004 drama Something the Lord Made (featuring Gabrielle Union). He also had a recurring role on The Young & The Restless and principal roles in several national commercials.
Mack co-hosted the United Airlines travel show Three For The Road and has done voice-overs for Nelson Mandela's Peace Parks Foundation and MTV's HIV/AIDS awareness video The Quiet War which features Bill Clinton. Mack also voices the Redguard Males in The Elder Scrolls: Redguard, Morrowind, and Oblivion computer games by Bethesda Softworks.
Active in his local community, Mack brought professional theater to the Washington National Cathedral as Dr. King in Jeff Stetson's play The Meeting. In 2002, Marc Fisher of The Washington Post did three stories on Mack's work with incarcerated youth. 
Mack has also helped at-risk youth and people without homes use drama as a life tool for change through his association with nonprofit organizations including Imagination Stage, Charlie's Place and Mary's Center in the Washington metropolitan area. As an acting coach and the founder of The Fearless Acting Workshop, Mack has helped local talent – such as The Mighty Rasta, aka Reebok's "Office Linebacker Terry Tate," Hollywood actors Jim Klock and Luke Daniels of the feature My Turn, Cher tribute artist Mary Ann Mellody and Black TV Online.com news anchor Ron Lincoln – launch careers. Mack now brings his talents to Star Trek: New Voyages, portraying Doctor M'Benga, a character previously portrayed by Booker Bradshaw.