Mark De Alessandro is an American SAG-AFTRA stunt coordinator, stuntman, character actor, and action director with over 30 years of experience and credits in 400+ feature films, television shows, and commercials. He graduated from Tarleton State University and Sam Houston State University, and has served as the personal stunt double and stunt coordinator for Sylvester Stallone since 1982, appearing in over 30 of Stallone's films including the Rocky and Rambo series. He has also doubled for Al Pacino, Robert DeNiro, Adam Sandler, Charlie Sheen, and Michael Caine, among others. He was part of the original cast of American Gladiators (1989–1990) and has received SAG Stunt Ensemble nominations for Titanic, Pirates of the Caribbean, and The Amazing Spider-Man, as well as a Taurus World Stunt Award nomination for Rocky Balboa. He has been married to fellow stuntwoman Chandra De Alessandro since 2000. His notable acting credits include Nefarious (2023) (Sean Patrick Flanery, Jordan Belfi), What Josiah Saw (2021) (Robert Patrick, Scott Haze), Colombiana (2011) (Zoe Saldana, Michael Vartan), Super (2010) (Rain, Emile Hirsch), Spider-Man (2002) (Tobey Maguire, Kirsten Dunst), Soldier (1998) (Jason Statham, Christian Slater), Daylight (1996) (Harrison Ford, Courtney Love), Lionheart (1990) (Steven Seagal, Michael Dudikoff), and Rocky IV (1985) (Sylvester Stallone, Dolph Lundgren). As a stunt coordinator he has worked on Rocky Balboa (2006), Cliffhanger (1993), Get Carter (2000), and Nefarious (2023), and performed stunts on Pirates of the Caribbean: At World's End (2007), The Maze Runner (2014), Starship Troopers (1997), and Under Siege 2: Dark Territory (1995).