Dewey appears in
Scream in 1996,
Scream 2 in 1997,
Scream 3 in 2000,
Scream 4 in 2011, and
Scream in 2022, in which the character is murdered by one of the
Ghostface killers. During the events of
Scream VI, Dewey is mentioned several times.
Film series Dewey made his cinematic debut in
Scream (1996). In the film, he is a
police officer and the older brother of
Tatum Riley, the best friend of protagonist
Sidney Prescott. Following the murders of
Steve Orth and
Casey Becker, Dewey questions the students at Woodsboro High School to narrow down suspects. After Sidney is attacked by
Ghostface and calls the police, Dewey arrives with the other officers at her house and arrests
Billy Loomis. At the police station, Dewey tries to help Sidney contact her father,
Neil, to no avail. The following day, Dewey meets
Gale Weathers outside the school. The two flirt before a loudspeaker announces that school is being closed due to the recent murders and attacks and that there is a 9 pm curfew set to begin in Woodsboro. That night, Dewey drops Sidney and Tatum off at a house party thrown by
Stu Macher and catches Gale and
Kenny outside. He tells Gale that he is keeping an eye out in case anything goes awry. Gale says she wants to come inside with Dewey when he goes to check the party out. Dewey and Gale leave after secretly hiding a camera in the party to monitor what happens. They wander down a road, chatting flirtatiously, with Dewey revealing that his real name is Dwight and that Dewey is just a nickname he got stuck with at a young age. They are nearly run over but jump out of the way in time, landing on top of each other and sharing a kiss. Gale notices Neil Prescott's car nearby and alerts Dewey. They run back to the house, with Dewey going inside to investigate. He is stabbed in the back by Ghostface and collapses. After the film's climax, it is confirmed that Dewey survived the stab the next morning. Dewey's second appearance was
Scream 2. Now paralyzed in one leg due to a nerve severed when he was stabbed, Dewey has flown out to Windsor College,
Ohio to keep an eye on
Sidney. He meets
Gale but is upset with her because Gale wrote about him in an unflattering manner in a book she published. Dewey then reintroduces himself to Sidney, who is happy to see him and likens him to an older sibling. When three murders occur –
Phil Stevens,
Maureen Evans, and
Cici Cooper – Dewey, Gale, and Sidney meet with Police Chief Hartley and determine that this is a copycat killing of the 1996 Woodsboro massacre. In a café,
Randy Meeks breaks down the rules of horror sequels to Dewey and they then discuss the murders and potential suspects, both playfully accusing each other. Later, while with Randy and Gale, Randy receives a call from Ghostface, and Gale and Dewey unsuccessfully check everyone with a phone to see if it is Ghostface. The two do not notice Randy's disappearance but later find his body in the back of a van. Gale finally wins Dewey back after expressing that she no longer cares about publicity and only wants to stop the murders. They skim through Gale's new cameraman,
Joel’s footage to find clues, but are distracted and start making out. They are then attacked by Ghostface, who repeatedly stabs Dewey in the back again. At the end of the movie, it is confirmed once again that Dewey survived the stab, with Gale helping him into an ambulance. After a romantic relationship between himself and Gale did not work out, Dewey returns in
Scream 3. Dewey accepts a job on the set of
Stab 3, an in-universe film loosely based on the events of
Scream and
Scream 2, as a
technical advisor and flies out to
Los Angeles. One day, Gale arrives on the set to be given the cold shoulder by Dewey before she is kicked off. At a café, Dewey and Gale catch up, Dewey is still upset that she left Woodsboro to chase opportunities after the events of
Scream 2, which led to the breakup.
Jennifer Jolie invites Dewey to hers, where she is sad about the deaths of
Sarah Darling and
Cotton Weary. Dewey puts together that the actors are being murdered in the order their characters die in
Stab, however since
Stab was written with three different endings, it is impossible to predict who will be next. Gale shows Dewey photos of
Maureen Prescott and the two notice that she has been to the studio where they are filming
Stab. Dewey saves Gale from being stabbed by Ghostface by shooting at him, leading to the two making up. Sidney arrives in Los Angeles and reunites with Dewey and Gale. They go to the place where the photos of Sidney's mother were taken and meet
Martha Meeks, sister of Randy, who has a pre-recorded tape Randy made for them. Dewey, Gale, and Jennifer go to confront
John Milton about Maureen's involvement with the studio. John says that she became addicted to drugs and lost her career that way. Dewey and Gale go to a party later that night and find a voice changer which Ghostface has been using to mask his identity. They witness Jennifer being stabbed by Ghostface before Gale is abducted and Dewey is knocked out. They are rescued by Sidney who shoots Ghostface. They catch up later after Sidney has taken down Ghostface and when
Roman Bridger gets up to attack Sidney, Dewey shoots him, killing him. Back home, Dewey proposes to Gale, who accepts. Dewey's fourth appearance was in
Scream 4. After the murders of
Marnie Cooper and
Jenny Randall, Dewey, who now resides in Woodsboro with Gale and works as the town's sheriff, visits Sidney at her book signing, as a phone used in the murders has been tracked there. After questioning
Jill Roberts, a cousin of Sidney, and her friends
Kirby Reed and
Olivia Morris, Dewey praises Sidney for her success since the events of
Scream 3. Later at a
Stab watch party, Gale calls Dewey to come to her location in case she needs help and when he arrives, he finds her being stabbed by Ghostface, he shoots Ghostface, and yells "firearm" to make everyone leave the party. He then calls an ambulance for her. Dewey later receives a call from Sidney, telling him that she is in danger, and when Dewey arrives Sidney and Jill are badly injured while
Charlie Walker and
Robbie Mercer are dead. When Jill wakes up in the hospital, Dewey reveals that Sidney survived the attack, with Jill comparing her wounds to Gale's. When Dewey visits Gale, who is also in the hospital, he puts together that Jill should not know about Gale's stab wounds if she were innocent. He rushes back to protect Sidney but is stopped by Jill, who beats him with a bedpan and knocks him out. When he wakes up, he finds out that Sidney and Gale managed to kill Jill and calls for backup. Dewey's fifth and last appearance was in
Scream (2022). Now a divorced and retired recluse who lives alone in a trailer, he is visited by
Sam Carpenter and
Richie Kirsch, only letting them in after Sam says her father is Billy Loomis. They ask him for help tackling a Ghostface attack as Sam's sister
Tara recently experienced one. He tells them never to trust a love interest, that the killer always has a motive that is connected to the past, and to concentrate their search within Tara's friend group. They ask him to come with them to help solve the case, but Dewey declines and sends them out. He calls Sidney and texts Gale about the new attacks, deciding that he will help after all. He follows Sam and Richie to
Chad and
Mindy's – nephew and niece of Randy Meeks – house, joined by the remainder of Tara's circle. Later, Dewey reunites with Gale at a crime scene, where it is explained that they broke up as Dewey couldn't bring himself to leave Woodsboro. That night, Tara and Richie are attacked by Ghostface in the hospital, but Dewey and Sam make it in time and Dewey interferes, managing to temporarily neutralize Ghostface during the fight. He rescues them all and evacuates them to safety in an elevator, but recalling previous experiences, decides to go back to finish off Ghostace with a shot to the head. However, he is further brutally stabbed to death by Ghostface (
Amber Freeman), who takes his gun. His gun would later be used by Gale to shoot Amber.
Other appearances In
Stab, the fictional film within a film based on the Ghostface murders, and again in
Stab 3, Dewey is portrayed by
David Schwimmer and fictional actor
Tom Prinze, respectively. David Arquette also reprised his role as Dewey in
Creed's "
What If" music video from the
Scream 3 soundtrack. In
Scream VI, during the New York Murders, Gale tried to interview Sam, who responded unfavorably because Gale had written a book about the 2022 Woodsboro Murders, questioning what Dewey's opinion would be. Subsequently, Gale stumbled upon a
shrine utilized by the current Ghostface killers. Upon entering the shrine, she found photographs and sketches of Dewey, along with his badges and firearm. During Sam's conversation with Gale about the loss of loved ones,
Dewey's theme is also used. Ghostface subsequently phoned Gale and taunts her about Dewey, prompting Gale to become upset. In
Scream 7, Dewey appears as a highly realistic
deepfake created via
AI manipulation by one of the Ghostface killers (
Marco Davis) to taunt Sidney, blaming her for his death. ==Development==