Question: Q: Who wrote both Bride of Chucky and Child's Play 3? A: Don Mancini

Context paragraphs:
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.

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.

Tiffany (Child's Play): Tiffany Valentine-Ray (also known as "The Bride of Chucky") is a murderous doll and an antagonist featured in the fourth, fifth, and sixth installments of the "Child's Play" franchise of horror films.  She is portrayed by Jennifer Tilly in both live-action and voiceover in "Bride of Chucky", "Seed of Chucky" and "Curse of Chucky".  On January 5, 2017, it was announced that Tilly had signed for the upcoming "Cult of Chucky".

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.

Chucky (Child's Play): Chucky is the main antagonist of the "Child's Play" horror film series.  Chucky is portrayed as a notorious serial killer whose spirit inhabits a fictional "Good Guy" doll and continuously tries to transfer his soul from the doll to a human body.  The character has become one of the most recognizable horror icons, often mentioned alongside Freddy Krueger, Jason Voorhees, Ghostface, Leatherface, Pinhead and Michael Myers, and has been referenced numerous times in pop culture.  In 1999, the Chucky character was nominated for the MTV Movie Award for Best Villain for the film "Bride of Chucky".  He was created by writer Don Mancini and is portrayed and voiced by Brad Dourif in both live-action and voice-over.

Cellar Dweller: Cellar Dweller is a 1988 horror film, about a comic book artist who unleashes a demon after drawing it.  It was directed by John Carl Buechler, written by Don Mancini credited as Kit Du Bois, and stars Debrah Farentino and Brian Robbins.  This is only non-"Chucky" film written by Mancini before he wrote "Child's Play".

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.

Kyle (Child's Play): Kyle is a fictional character in the "Child's Play" franchise, created by Don Mancini and portrayed by actress Christine Elise.  She appears in three of the seven films, first appearing in John Lafia's "Child's Play 2" (1990), assisting Andy Barclay with his battle against Chucky and additionally has cameo appearances in Don Mancini's "Curse of Chucky" (2013) and "Cult of Chucky" (2017).  Kyle is a main character in the "Child's Play" novels and comic book adaptions.

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.

Supporting paragraphs: Bride of Chucky Child's Play 3
Answer: Don Mancini