Mac McDonald (born Terence McDonald; June 18, 1949) is an American actor who played Simpson in the extended Special Edition of Aliens. He also provided the voice of unnamed background characters in Alien: Isolation, voiced Lachance in the 2016 audio drama version of Alien: Out of the Shadows and reprised the role of Simpson in the 2017 audio drama version of Alien: River of Pain. Other notable films McDonald has appeared in include Star Wars Episode V: The Empire Strikes Back (1980), Batman (1989), Nightbreed (1990), The Fifth Element (1997) and The 51st State (2001). Aside from his work in film, McDonald has had an extensive career in British television. He is perhaps best known for his role as Captain Frank Hollister in the sci-fi sitcom Red Dwarf (1988-1999).