Question: Justin Garrett Whalin (born September 6, 1974) is an American actor, he is known for his roles as the teenage Andy Barclay in Child's Play 3, a 1991 American supernatural slasher film, written by who?

Context paragraphs:
Bride of Chucky: Bride of Chucky is a 1998 American supernatural comedy slasher film, the fourth installment of the "Child's Play" franchise and sequel to 1991's "Child's Play 3".  The film is written by Don Mancini and directed by Ronny Yu, and stars Jennifer Tilly (who plays and voices the title character Tiffany) and Brad Dourif (who voices Chucky), as well as John Ritter, Katherine Heigl and Nick Stabile.

Justin Whalin: Justin Garrett Whalin (born September 6, 1974) is an American actor.  He is known for his roles as the teenage Andy Barclay in "Child's Play 3" and Jimmy Olsen in the American television series "".

Curse of Chucky: Curse of Chucky is a 2013 American supernatural slasher film and the sixth installment of the "Child's Play" franchise.  The film was written and directed by Don Mancini, who created the franchise and wrote all films to date.  It stars Brad Dourif as Chucky and Fiona Dourif as Nica Pierce, as well as Danielle Bisutti, A Martinez and Brennan Elliott.  The film grossed $3.4 million in DVD sales.

Child's Play (1988 film): Child's Play is a 1988 American supernatural slasher film directed and co-written by Tom Holland and produced by David Kirschner from a story by Don Mancini.  It is the first film in the "Child's Play" franchise and the first installment to feature the character Chucky.  It stars Catherine Hicks, Dinah Manoff, Chris Sarandon, Alex Vincent, and Brad Dourif.  Hicks plays a widowed mother who gives her son a doll for his birthday, unaware that the doll is possessed by the soul of an infamous serial killer.

Friday the 13th Part VII: The New Blood: Friday the 13th Part VII: The New Blood is a 1988 American supernatural slasher film directed by John Carl Buechler and starring Lar Park Lincoln, Kevin Blair, and Susan Blu.  It is the seventh installment in the "Friday the 13th" film series, and the first film to feature Kane Hodder as Jason Voorhees, who would play the character in the following three films.  Incorporating elements of supernatural horror, the film follows a psychokinetic teenage girl who inadvertently unleashes Jason from his grave in Crystal Lake, where she and her friends are staying.

Child's Play 2: Child's Play 2 is a 1990 American supernatural slasher film and the sequel to "Child's Play", written by Don Mancini and directed by John Lafia, who one of co-writers in the first film.  It is the second film in the "Child's Play" franchise and set two years after the first film, the plot follows Charles Lee Ray (better known as Chucky) continuing his pursuit for Andy Barclay, who placed in foster care and transferring his soul into him after being resurrected.  The film stars Alex Vincent, who returns as Andy Barclay; Gerrit Graham and BAFTA-winner Jenny Agutter as Andy's foster parents; Christine Elise as Kyle; and Brad Dourif as the voice of Chucky.  It is also noted for being the debut appearance of Adam Wylie.  Unlike its predecessor, the sequel uses more comic elements in regard to the Chucky character.

Seed of Chucky: Seed of Chucky is a 2004 American supernatural comedy slasher film, the fifth installment of the "Child's Play" series, and sequel to 1998's "Bride of Chucky".  The film was written and directed by Don Mancini, who created the series and has written all of the films.  With this entry, Mancini made his directorial debut.  The film is set six years after "Child's Play 3" and "Bride of Chucky" and follows a young doll named Glen, the son of Chucky and Tiffany, resurrecting his parents, causing chaos.

Cult of Chucky: Cult of Chucky is a 2017 American supernatural slasher film written and directed by Don Mancini, who is the "Child's Play" franchise's creator and sole writer to date.  The seventh installment of the franchise, following the 2013 film "Curse of Chucky", it stars Brad Dourif as Chucky, with a supporting cast of Fiona Dourif, Alex Vincent, Jennifer Tilly and Summer H. Howell – all of whom are returning cast members from the previous six installments.

Child's Play 3: Child's Play 3 is a 1991 American supernatural slasher film.  It is the third installment in the "Child's Play" series.  The film is written by Don Mancini, and directed by Jack Bender, with Brad Dourif returning as the voice of Chucky.  Although released only one year later, the story takes place eight years following the events of 1990's "Child's Play 2".  It was executive produced by David Kirschner who produced first two "Child's Play" films.

Irrational Fear (film): 'Irrational Fear' is a 2017 independent horror film.  It focuses on six therapy patients are brought together at a secluded cabin to confront their strangest fears.  But these fears won't just hurt them...they will kill them.  It is the third feature film from Slasher Studios and their first partnership with L.A. Horror.  It is an American supernatural slasher film written by Hunter Johnson & Kevin Sommerfield and directed by Hunter Johnson.

Supporting paragraphs: Justin Whalin Child's Play 3
Answer: Don Mancini