Darbois is a regular French voice for many actors, including Harrison Ford, Danny Glover, Richard Gere, Jeff Goldblum, Dan Aykroyd, and Patrick Swayze, as well as for Bill Murray, Arnold Schwarzenegger and Sylvester Stallone.

Darbois is also very present in the animation industry, standing out singularly by his playing and various vocal possibilities.

He has participated in many works for Disney Studios, notably lending his voice to Buzz Lightyear in the Toy Story franchise and the series Buzz Lightyear of Star Command, Genie in Aladdin, Oogie Boogie in The Nightmare Before Christmas, Shan-Yu in Mulan, Bruce in Finding Nemo, Mr. Waternoose in Monsters, Inc..

He doubles Harrison Ford, Richard Gere, Danny Glover and Jeff Goldblum and has repeatedly dubbed Bill Murray, Patrick Swayze, Arnold Schwarzenegger, Liam Neeson, George Clooney and even Sylvester Stallone (during a certain period, Alain Dorval, the usual voice of Stallone, was at odds with the studios, following union demands).

Danny Glover, on the other hand, has the same voice as Harrison Ford, but with a slight black African-American accent.