Sam Lavagnino is an American voice actor known for his extensive work in animation, including providing the English voice for the character Beaver in the 2021 anime film Words Bubble Up Like Soda Pop. Born on June 29, 2006, he began his voice acting career at a young age, with some of his earliest roles dating back to 2012 and 2013.

Lavagnino's career is marked by a variety of prominent roles in animated television series. He is widely recognized for voicing the character Catbug in the web series Bravest Warriors, a role that brought him early attention. Another significant and long-running role is that of the younger version of Grizzly, one of the titular bears, in the popular Cartoon Network series We Bare Bears, a character he voiced throughout the show's run and in its 2020 film adaptation. He also voiced the puppy Rolly as a leading character in the Disney Junior series Puppy Dog Pals. His other television credits include roles in Summer Camp Island, Miles from Tomorrowland, and Craig of the Creek.

In addition to television, Lavagnino has contributed his voice to several major animated feature films. His filmography includes providing additional voices for The Boxtrolls and The Peanuts Movie, voicing the character Ozzy in The Grinch, and having a role in Minions: The Rise of Gru. His work also extends to video games, such as voicing the character Radiant Itamen in Horizon Zero Dawn and its sequel, Horizon Forbidden West.

His involvement in the anime film Words Bubble Up Like Soda Pop represents a foray into English-language dubbing for anime. In this coming-of-age story, he voices the character Beaver, a friend within the group of teenagers at the local shopping mall. Lavagnino has also been involved in various anime-influenced Western productions throughout his career. Recurring collaborations are evident with networks and studios like Cartoon Network, Disney, and Frederator, having worked on multiple projects under their banners, such as We Bare Bears, Summer Camp Island, and Bravest Warriors. A notable achievement early in his career was participating in panels and autograph sessions at San Diego Comic-Con at the age of seven, highlighting his early prominence in the animation community.