Question: Travis Hampton Willingham is an American actor who provides voices on English language dubs of Japanese anime shows, as well as on cartoons and video games, he is the current voice of Knuckles the Echidna in the "Sonic the Hedgehog" video game franchise since which year, as well as in the "Sonic Boom" animated series?
Context: Sonic Boom is a French-American-Japanese computer-animated action comedy television series, produced by Technicolor Animation Productions and Sega of America, Inc. in collaboration with Lagardère Thématiques and Jeunesse TV, respectively for channels Canal J and Gulli.  Based on the Japanese video game franchise "Sonic the Hedgehog" created by Sega, the series is the fifth animated television series based on the franchise (plus the second one to be co-produced in France following "Sonic Underground"), and the first to be produced in computer-generated animation and in high definition. Sonic & Knuckles is a platform game developed by Sonic Team and published by Sega for the Sega Genesis.  Released on October 18, 1994, it is an installment in the main "Sonic the Hedgehog" series and a direct sequel to "Sonic the Hedgehog 3", which released earlier that year.  It follows Sonic the Hedgehog and Knuckles the Echidna in their respective quests to save Angel Island; Sonic tries to prevent Dr. Robotnik from relaunching his orbital weapon, the Death Egg, while Knuckles scuffles with Robotnik's minion, known as EggRobo. The "Sonic the Hedgehog" video game franchise began in 1991 with the game "Sonic the Hedgehog" for the Sega Genesis, which pitted a blue anthropomorphic hedgehog named Sonic against a rotund male human villain named Doctor Eggman (or Doctor Ivo Robotnik).  The sequel, "Sonic 2", gave Sonic a fox friend named Tails.  Shortly afterward, "Sonic CD" introduced Amy Rose, a female hedgehog with a persistent crush on Sonic, and "Sonic 3" introduced Knuckles the Echidna, Sonic's rival and, later, friend.  All five of these have remained major characters and appeared in dozens of games. Quinton Joseph Flynn (born October 10, 1964) is an American voice actor who is most notable for providing the English voices of video game characters such as Raiden in the "Metal Gear" series, Kael'thas Sunstrider in "World of Warcraft", Lea and his Nobody Axel in the "Kingdom Hearts" series, Reno in "Final Fantasy VII" and its sequels and prequels, Myifee in "Ninety-Nine Nights", and as Henry in "No More Heroes".  He can also be heard in the strategy game "" as the Hum-vee, Missile Defender, Pathfinder, Raptor, and U.S. Pilot units.  He is also a frequently recurring actor on the stop-motion sketch series "Robot Chicken" and the video game series "Crash Bandicoot", he is also the current voice of Silver the Hedgehog in the "Sonic the Hedgehog" franchise since 2010.  His younger brother Bart Flynn is also a voice actor, both of whom have voiced characters on "The Grim Adventures of Billy & Mandy".  Outside of voice acting, he has a 3 track record in digital format titled "Puzzled Yesterdays".  He is also the narrator of the Investigation Discovery television series "I'd Kill for You". Erin Fitzgerald is a Canadian-American voice actress who provides voice-overs for a number of cartoons, video games and English language dubs of Japanese anime.  In animation, she voices May Kanker and Nazz in "Ed, Edd n Eddy", and voices major characters in "The Jungle Bunch", "", "Monster High" and "Ever After High".  In video games, she voices female leads Yrel in "", Chie Satonaka in the "Persona 4" series of games starting with "Persona 4 Golden" and Noire in the "Hyperdimension Neptunia" series.  In anime shows, she has voiced in "Sailor Moon", "Bleach", "Naruto Shippuden", "Knights of Sidonia" and "Glitter Force". Sonic Adventure 2 is a 2001 platform video game developed by Sonic Team USA and published by Sega.  The sequel to "Sonic Adventure" (1998)"," it was the final "Sonic the Hedgehog" game for the Dreamcast after Sega discontinued the console.  It features two good-vs-evil stories: Sonic the Hedgehog, Miles "Tails" Prower and Knuckles the Echidna attempt to save the world, while Shadow the Hedgehog, Doctor Eggman and Rouge the Bat attempt to conquer it.  The stories are divided into three gameplay styles: fast-paced platforming for Sonic and Shadow, multi-directional shooting for Tails and Eggman, and action-exploration for Knuckles and Rouge. Sonic Boom: Shattered Crystal is an action-adventure video game developed by Sanzaru Games and published by Sega for the Nintendo 3DS.  Along with its Wii U sibling "", "Shattered Crystal" is a spin-off of Sega's "Sonic the Hedgehog" franchise and is a part of the "Sonic Boom" sub-franchise, which consists also of an animated television series, whose games serve as its prequels.  The two games together formed the third and final part in Sega's exclusivity agreement with Nintendo, following "Sonic Lost World" and "Mario & Sonic at the Sochi 2014 Olympic Winter Games" in 2013.  Both games were released in North America, Europe, and Australia in November 2014, and in Japan the following month, where it was retitled as Sonic Toon: Island Adventure.  A sequel, "", was released for the 3DS on September 27, 2016. Laura Dawn Bailey is an American voice actress and ADR director who provides voices for English-language versions of anime and video games, as well as in cartoons.  Her first major roles in anime were as Kid Trunks and Kid Dende in the Funimation dub of "Dragon Ball Z".  She voiced Tohru Honda in "Fruits Basket", Lust in "Fullmetal Alchemist" and "", Shinnosuke "Shin" Nohara in the Funimation dub of "Crayon Shin-Chan", and Maka Albarn in "Soul Eater".  In video games, she is notable for the voices of Jaina Proudmoore in "World of Warcraft", Rayne in the "BloodRayne" series, Chun-Li in the newer titles of the "Street Fighter" series, Rise Kujikawa in the "Persona 4" series, Blaze the Cat in "Sonic the Hedgehog" series, Lucina in "Fire Emblem Awakening", Serah Farron in the "Final Fantasy XIII" series, Serana in "", Abigail "Fetch" Walker in "InFAMOUS Second Son" and "InFAMOUS First Light", Olympia Vale in "", Nadine Ross in "" and "", Fiona in "Tales from the Borderlands" and Kait Diaz in "Gears of War 4".  She voiced Catwoman in "" and also voices Black Widow in a variety of the Marvel cartoons and video games. Travis Hampton Willingham is an American actor who provides voices on English language dubs of Japanese anime shows, as well as on cartoons and video games.  He has worked for Funimation, Studiopolis, and New Generation Pictures.  He rose to fame in the voice-acting world for his portrayal of Roy Mustang in the dub of "Fullmetal Alchemist".  He reprised the role in "".  Other roles include: Cleo in "Glass Fleet", Yu Kanda in "D.Gray-man", Portgas D. Ace in the Funimation dub of "One Piece", Takashi Morinozuka in "Ouran High School Host Club", several characters in "" and "Bleach".  He is the current voice of Knuckles the Echidna in the "Sonic the Hedgehog" video game franchise since 2010, as well as in the "Sonic Boom" animated series, Guile in the newer titles of the "Street Fighter" series and Reggie Rowe in "Infamous Second Son".  He also voices Thor in variety of the Marvel cartoons and video games, and King Roland II in "Sofia the First". David Richard Paul "Dave" Wittenberg is a South African-born American voice actor from the Los Angeles area who provides voice-overs in English dubs of Japanese anime shows, as well as cartoons and video games.  His best-known role is voicing Kakashi Hatake in the "Naruto" series.  Other major roles in anime include Michael Lee in "Witch Hunter Robin" and Takumi Fujiwara in the Tokyopop dub of "Initial D".  In cartoons, he voices Bash Johnson in "", Franz's singing voice in the Disney animated film, "Planes", The Vision from "Marvel Heroes" and Time Baby from "Gravity Falls".  In video games, he voices Trigger Happy from the "Skylanders" series, Mad Doctor from "Epic Mickey 2" and Buddy Alexander from "".  He is also a script writer for some dubbed anime whose work includes episodes of the "" television series and narrates many documentaries and specials for the Travel Channel and the Food Network.
Answer: 2010