Anthony Michael Hall (born Michael Anthony Thomas Charles Hall; April 14, 1968) is an American actor. Following his film debut in Six Pack (1982) and a supporting role as Russell "Rusty" Griswold in National Lampoon's Vacation (1983), Hall had his breakout with starring roles in three John Hughes-directed films: Sixteen Candles, The Breakfast Club, and Weird Science. Mainstream media associated Hall with a group of young actors known as the "Brat Pack" due to his roles in those films. Hall diversified his roles to avoid becoming typecast as his geek persona, joining the cast of Saturday Night Live (1985–1986) and starring in films such as Out of Bounds (1986), Johnny Be Good (1988), and Edward Scissorhands (1990). Following multiple minor roles in the 1990s, he starred as Microsoft co-founder Bill Gates in the television film Pirates of Silicon Valley (1999). Hall experienced a career resurgence with the lead role in the USA Network science fiction series The Dead Zone (2002–2007) and a supporting role in the superhero film The Dark Knight (2008). In the 2010s and 2020s, Hall starred in the films Results (2015), War Machine (2017), Bodied (2017), Halloween Kills (2021), and Trigger Warning (2024). He also had a main role on the third season of the Amazon Prime Video series Reacher (2025).