Daveed Diggs is the voice of Sebastian in the new live‑action The Little Mermaid movie released in 2023.

Quick Scoop: Who Voices Sebastian?

In Disney’s new live‑action The Little Mermaid , the character of Sebastian the crab is voiced by actor and musician Daveed Diggs. He’s best known for his Tony‑ and Grammy‑winning performance in the Broadway musical Hamilton , where he played Marquis de Lafayette and Thomas Jefferson.

Diggs brings a Caribbean‑flavored accent and energetic musical style to Sebastian, echoing the spirit of the original animated performance while adding his own modern flair. Fans and critics have highlighted how his comedic timing and musical background help keep iconic moments like “Under the Sea” feeling fresh in the 2023 remake.

Why This Casting Was A Big Deal

  • Sebastian is one of the most recognizable sidekicks from the original 1989 animated film, originally voiced by Samuel E. Wright.
  • Recasting such a beloved role created a lot of anticipation and debate ahead of the 2023 release.
  • Daveed Diggs was widely seen as a strong pick because he combines acting, rapping, and singing at a very high level.

A typical reaction in fan discussions has been along the lines of:

“If anyone was going to step into Sebastian’s shell in the live‑action version, Diggs makes sense—he can actually handle the big musical numbers and the comedy.”

Extra Tidbit and Trending Context

  • The film is part of Disney’s ongoing wave of live‑action remakes of classic animated titles, which has been a major studio trend through the 2020s.
  • Online conversations around the 2023 Little Mermaid frequently mention Diggs’ performance as one of the standout elements of the movie’s cast.

TL;DR: The voice of Sebastian in the new Little Mermaid is Daveed Diggs, bringing a modern, musical, and high‑energy take to the iconic crab.

Information gathered from public forums or data available on the internet and portrayed here.