Filmography

After high school, Clara decided to pursue acting full-time. She attended castings for High School Musical: La Selección. She was one of the twenty people selected to participate in the musical reality competition. It was broadcast on Channel 13 and Disney Channel in Argentina. She was eliminated in the tenth week, but was later called back to be a member of a concert tour throughout Argentina.

She was also cast in her first acting role as "Clari" in the Argentine film version of High School Musical.

During a tour stop in La Rioja, Argentina for the film's concert, she attracted the attention of Disney Channel Latin America producers who cast her as a hostess in "Zapping Zone", a youth-targeted celebrity entertainment show for Argentina. She hosted the program alongside Daniel Martins and Carolina Ibarra. Due to the show's success, it began airing in other countries throughout South America.
After spending more than four years on "Zapping Zone", Clara announced her departure from the show on August 12, 2011.

From April 27 to May 2, 2008, she traveled to Orlando, Florida to participate in the Disney Channel Games 2008. In Latin America, the program aired from September 5 to October 3.
She was part of the green team called "The Cyclones", alongside several international Disney stars. Her team finished in third place with 55 points.

On October 21, 2008, during a taping of "Zapping Zone", Alonso premiered her debut single "A mi alrededor" with the collaboration of Sophie Oliver Sanchéz. A music video was also filmed and aired throughout Latin America on Disney Channel. This was her first solo single for Walt Disney Records' label.

In 2010, she starred in the Disney Channel mini-series Highway: Rodando la Aventura which is the fourth original production of Disney Channel Latin America. The series tells the story of a group of eight friends in a motorhome traveling throughout Latin America. Alonso played a young perfectionist, who was obsessed with cleanliness and order.

That same year she began working as a voice-over actress on the Spanish-language version of the Disney Channel series Pecezuelos.

In August 2010, she traveled to São Paulo, Brazil to shoot a two-part episode for the Disney Channel series "Cuando toca la campana", which is based on the original US version, As the Bell Rings. She played Jennifer, a new student in the final days of the school year.

In March 2012, she appeared in an episode in the Disney XD series Latin America show, "Peter Punk", where she played "Piranha", a very determined teenage punk.

In 2012, she was cast as "Angie", the estranged aunt and music teacher of the title character, in the tween musical Disney Channel series Violetta.

In February 2014, Clara began rehearsals for the musical theatre production, Groupie in Buenos Aires. The play is based on Beatles songs and their cultural and social impact in Buenos Aires in 1963. It premiered at The Cavern in Buenos Aires on June 4, 2014. Alonso plays "Sandra" in the production.

During March and April 2014, she traveled to Milan, Italy to film, Angie e le ricette di Violetta ("Angie and Violetta's recipes" in English), a special cooking blog mini-series based on Violetta. In the series, Angie briefly travels to Italy to improve her cooking skills with help via video-chatting from a friend, Olga. The role will be Alonso's first Italian-speaking part. The series is expected to have 20 episodes.