Question: Brian Griffin is a fictional character from the American animated television series "Family Guy", an anthropomorphic white dog voiced by which American actor, filmmaker, comedian, and singer, working primarily in animation and comedy, as well as live-action and other genres, and is the creator of the TV series, "The Orville" (2017–present)?

Context paragraphs:
Road to the Multiverse: "Road to the Multiverse" is the first episode of the eighth season of the animated comedy series "Family Guy".  This and most of the Season 8 episodes were produced for season 7.  Directed by Greg Colton and written by Wellesley Wild, the episode originally aired on Fox in the United States on September 27, 2009, along with the series premiere of "The Cleveland Show".  In "Road to the Multiverse", two of the show's main characters, baby genius Stewie and anthropomorphic dog Brian, both voiced by series creator Seth MacFarlane, use an "out-of-this-world" remote control to travel through a series of various parallel universes.  They eventually end up in a world where dogs rule and humans obey.  Brian becomes reluctant to return to his own universe, and he ultimately ends up breaking the remote, much to the dismay of Stewie, who soon seeks a replacement.  The "Road to" episodes which have aired throughout various seasons of "Family Guy" were inspired by the "Road to ..." comedy films starring Bing Crosby, Bob Hope and Dorothy Lamour, though this episode was not originally conceived as a "Road to" show.

Chris Griffin: Christopher Cross "Chris" Griffin is a fictional character from the American animated television series "Family Guy".  He is the elder son and middle child of Peter and Lois Griffin and brother of Stewie and Meg Griffin.  He is voiced by Seth Green and first appeared on television, along with the rest of the family, in a 15-minute short on December 20, 1998.  Chris was created and designed by MacFarlane himself.  MacFarlane was asked to pitch a pilot to the Fox Broadcasting Company, based on "The Life of Larry" and "Larry & Steve", two shorts made by MacFarlane featuring a middle-aged man named Larry and an intellectual dog, Steve.  After the pilot was given the green light, the Griffin family appeared in the episode "Death Has a Shadow".

Peter's Got Woods: "Peter's Got Woods" is the eleventh episode and the mid-season premiere of the fourth season of the American animated television series "Family Guy".  It originally aired on Fox in the United States on September 11, 2005.  In the episode, Brian offers to help an African-American woman change the name of James Woods Regional High School to Martin Luther King Jr., but his friendship with Peter becomes strained when Peter — who objects to the idea — recruits actor James Woods to sabotage the idea.  James Woods would later return for revenge in the season 6 episode "Back to the Woods", and again for "Brian Griffin's House of Payne" and would eventually be killed off in the season 9 premiere episode "And Then There Were Fewer", but is later revealed to have survived his death in the season 10 episode "".

Brian Griffin: Brian Griffin is a fictional character from the American animated television series "Family Guy".  An anthropomorphic white dog voiced by Seth MacFarlane, he is one of the show's main characters as a member of the Griffin family.  He primarily works in the series as a less-than-adept writer struggling to find himself, attempting essays, novels, screenplays, and newspaper articles.

Cleveland Brown: Cleveland Orenthal Brown Sr. is a fictional character from the animated television series "Family Guy", and its spin-off series "The Cleveland Show".  He is voiced by Mike Henry.  In the first seven seasons of "Family Guy", Cleveland is a frequently recurring character.  As one of Peter Griffin's neighbors and friends, Cleveland is also one of the few recurring African American characters on the show.  He was conceived during the seventh-inning stretch of a Cleveland Indians game.  His established profession was that of a deli owner.

Seth MacFarlane: Seth Woodbury MacFarlane (born October 26, 1973) is an American actor, filmmaker, comedian, and singer, working primarily in animation and comedy, as well as live-action and other genres.  MacFarlane is the creator of the TV series "Family Guy" (1999–2003, 2005–present) and "The Orville" (2017–present), and co-creator of the TV series "American Dad! " (2005–present) and "The Cleveland Show" (2009–2013).  He also wrote, directed, and starred in the films "Ted" (2012), its sequel "Ted 2" (2015), and "A Million Ways to Die in the West" (2014).

Brian: Portrait of a Dog: "Brian: Portrait of a Dog" is the seventh episode and the season finale of the first season of the animated comedy series "Family Guy".  It originally aired on Fox in the United States on May 16, 1999.  The episode features anthropomorphic dog Brian after he swallows his pride, and joins a dog show, after much convincing, in order to win money for a new air conditioner.  But after an argument over a trick gone bad, with his owner, Peter Griffin, Brian realizes he is a second-class citizen and runs away from home, landing him in the pound on death row.  Desperate to save their dog, the Griffin family attempts to release Brian, and prevent him from being euthanized.

Lois Griffin: Lois Patrice Griffin (née Pewterschmidt) is one of the main characters of the American animated television series "Family Guy".  She is voiced by writer Alex Borstein and first appeared on television, along with the rest of the family, in the 15-minute short on December 20, 1998.  Lois was created and designed by series creator Seth MacFarlane.  MacFarlane was asked to pitch a pilot to the Fox Broadcasting Company based on "Larry and Steve", a short he made which featured a middle-aged character named Larry and an intellectual dog, Steve.  After the pilot was given the green light, the Griffin family appeared on the episode "Death Has a Shadow".

Family Guy (season 7): "Family Guy"'s seventh season first aired on the Fox network in sixteen episodes from September 28, 2008 to May 17, 2009 before being released as two DVD box sets and syndicated.  The animated television series follows the dysfunctional Griffin family (father Peter, mother Lois, daughter Meg, son Chris, baby Stewie and their anthropomorphic dog Brian), who reside in the town of Quahog.  The show features the voices of series creator Seth MacFarlane, Alex Borstein, Seth Green, and Mila Kunis in the roles of the Griffin family.  The executive producers for the seventh season were MacFarlane, Danny Smith, David Goodman and Chris Sheridan.  Goodman and Sheridan served as showrunners for season seven.

Stewie Griffin: Stewart Gilligan "Stewie" Griffin is a main character from the American animated television series "Family Guy".  Initially obsessed with violence and matricide, Stewie (voiced by Seth MacFarlane) is the youngest child of Peter and Lois Griffin, and the brother of Meg and Chris Griffin.  Over the duration of the series, the violent aspects of Stewie's personality have been toned down, and he has evolved into a more eccentric, flamboyant character.  He has also come to have a very close friendship with the family's anthropomorphic dog, Brian.  Stewie is considered to be the show's breakout character.  "Wizard" magazine rated him the 95th greatest villain of all time.

Supporting paragraphs: Brian Griffin Seth MacFarlane
Answer: Seth MacFarlane