Question: Sam Lavagnino voices the dog "Rolly" in a Disney Junior show created by who?

Context paragraphs:
Disney Junior (Romania): Disney Junior Romania is a television channel, launched as a block programming in June 2011, named as "Disney Junior România pe Disney Channel România".  Currently, is a channel since March 2012.  Playhouse Disney Romania was re-branded as Disney Junior on June 1, 2011.  It is the new kids aimed programming block on Disney Channel Romania.  Every current show in the channel are dubbed by Ager Film Studio.

Sam Lavagnino: Sam Lavagnino (born June 29, 2006) is an American child voice actor known for his roles as Catbug in "Bravest Warriors" and Young Grizz in "We Bare Bears".  He also voices the dog "Rolly" in the Disney Junior show "Puppy Dog Pals".

Disney Junior (Latin America): Disney Junior Latin America is a cable television channel and is a version of The Walt Disney Company-owned Disney Junior, broadcasting in all Latin America.  It is broadcast in three feeds: North Zone, South Zone and Brazil.  It is marketed to preschoolers.  Disney Junior is operated by Disney & ESPN Media Networks Latin America and The Walt Disney Company Latin America, both of The Walt Disney Company.  It was launched on June 1, 2008 as Playhouse Disney Channel.  Formerly it only was a programming block in the mornings of Disney Channel Latin America, where it still is a programming block, as Disney Junior en/no Disney Channel.  The programs are very similar to the Disney Junior channel and Disney Junior on Disney Channel block in the United States.  However, the channel also airs non-original programming.

List of Jake and the Never Land Pirates episodes: "Jake and the Never Land Pirates" (also known as "Captain Jake and the Never Land Pirates" in the fourth season and associated merchandise) is an Annie Award-winning musical and interactive animated television series shown on Disney Junior.  It is based on Disney's "Peter Pan" franchise, which in turn is based on the famous book and play by British author J.M. Barrie.  It is the first Disney Junior original show following the switch from Playhouse Disney.  It stars Sean Ryan Fox from "Henry Danger", Megan Richie, Jadon Sand, David Arquette, Corey Burton, Jeff Bennett, and Loren Hoskins.  The titular character Captain Jake was previously voiced by Colin Ford, and then later by Cameron Boyce, and finally by Sean Ryan Fox, while Izzy was voiced for the first three seasons by Madison Pettis and Cubby was voiced by Jonathan Morgan Heit.  The series is created by Disney veteran Bobs Gannaway, whose works include another Disney Junior series, "Mickey Mouse Clubhouse", and films such as "Secret of the Wings", "The Pirate Fairy", and "".

Huggies Pull-Ups: Pull-Ups is a brand of disposable training pants made under the Huggies brand of baby products.  The product was first introduced in 1989 and became popular with the phrase "I'm a big kid now!"  which is the product's slogan.  The training pants are marketed with two packages: boys' designs are blue and currently feature characters from the Disney Junior show "The Lion Guard"; girls' designs are pink with the Disney Junior show "Whisker Haven Tales with the Palace Pets" characters.

Miles from Tomorrowland: Miles from Tomorrowland (titled Miles From Tomorrow in the UK) is a CGI animated Disney Junior series.  The series aired as shorts from January 19 to 23 before officially premiering on February 6, 2015.  A total of 24 episodes, each consisting of two 11-minute stories, had been ordered for the first season.  by Disney–ABC Television Group using data from Nielsen, across Q3 of 2015 (6/29 through 9/27), Miles from Tomorrowland was the fourth highest-rated series across preschooler-dedicated TV networks in the USA with 653,000 total viewers ages 2+ who watched the show on Disney Junior.  This ranking was surpassed only by PJ Masks (767,000), Sofia the First (667,000), and Mickey Mouse Clubhouse (666,000), all Disney Junior shows as well.

Puppy Dog Pals: Puppy Dog Pals (previously titled Puppy Dog Tails) is an American computer-animated children's television series created by Harland Williams.  The series debuted on Disney Junior and Disney Channel in the United States on April 14, 2017.

Sheriff Callie's Wild West: Sheriff Callie's Wild West is an American/Canadian musical comedy series for preschool children.  The series is created by the combined efforts of George Evelyn, Holly Huckins and Denis Morella and produced by Wildbrain of "Higglytown Heroes" and DHX Media.  This stars Mandy Moore from Disney's "Tangled".  The CGI animation was done by Strawberry Shortcake Productions.  It first aired on Disney Junior on January 20, 2014 with an 11-minute episode preview aired in the "Magical Holidays on Disney Channel" programming event on December 13, 2013.  The series borrows elements from the Western genre with the theme of the series revolving around "Getting along with each other".  It also had a special look on Disney Junior on January 25, 2014, at 7:25 pm ET.  It was also the first Disney Original Series to premiere first on CGI basic cable via the WATCH Disney Junior app.

Disney Junior (Asia): Disney Junior Southeast Asia (known as Disney Junior and formerly known as Playhouse Disney from 2004 to 2011) is a cable and satellite television channel that broadcasts in Southeast Asia, owned by the Disney Channels Worldwide unit of the United States-based Disney–ABC Television Group, managed by The Walt Disney Company Southeast Asia.  Aimed mainly for children between 2 through 9 years of age, its programming consists of original first-run television series, theatrically-released and made-for-DVD movies and select other third-party programming.  Disney Junior also lends its name to an early morning program block seen on sister network Disney Channel, branded as "Disney Junior on Disney Channel."  The block airs every day at 7am MAL/PHIL time for two hour duration.

Jake and the Never Land Pirates: Jake and the Never Land Pirates (also known as Captain Jake and the Never Land Pirates in the fourth season and associated merchandise) is an Annie Award-winning musical and interactive American children's animated television series shown on Disney Junior.  It is based on Disney's "Peter Pan" franchise, which in turn is based on the famous book and play by British author J. M. Barrie.  It is the first Disney Junior original show following the switch from Playhouse Disney.  It stars Sean Ryan Fox from "Henry Danger", Megan Richie, Jadon Sand, David Arquette, Corey Burton, Jeff Bennett, Loren Hoskins and Dee Bradley Baker.  The title character Jake was previously voiced by Colin Ford, and then later by Cameron Boyce, while Izzy was voiced for the first three seasons by Madison Pettis and Cubby was voiced by Jonathan Morgan Heit.  The series is created by Disney veteran Bobs Gannaway, whose works include another Disney Junior series, "Mickey Mouse Clubhouse", and films such as "Secret of the Wings", "The Pirate Fairy" and "".  The last episode aired on November 6, 2016.

Supporting paragraphs: Sam Lavagnino Puppy Dog Pals
Answer: Harland Williams