Aidan Quinn (born March 8, 1959) is an American actor who made his film debut in Reckless (1984). He has starred in over 80 feature films, including Desperately Seeking Susan (1985), The Mission (1986), Stakeout (1987), Avalon (1990), Benny & Joon (1993), Legends of the Fall (1994), Mary Shelley's Frankenstein (1994), Michael Collins (1996), Practical Magic (1998), Song for a Raggy Boy (2003), Wild Child (2008) and Unknown (2011).
Quinn has received two Primetime Emmy Award nominations for his work in An Early Frost (1985) and Bury My Heart at Wounded Knee (2007). He played Captain Thomas "Tommy" Gregson in the CBS television series Elementary (2012–2019).
