[1][2] Contrary to internet rumors of being Mako Iwamatsu’s understudy in preparation for voicing Iroh in Avatar: The Last Airbender, Baldwin had actually earned the part by auditioning for it.

Before The Last Airbender's final season aired, Baldwin also performed a substantial portion of Splinter's dialogue in the movie TMNT after Mako died during production.

[3] Nearly six months after The Last Airbender concluded, Baldwin would once again succeed Iwamatsu by voicing Aku in the 2009 video game Cartoon Network Universe: FusionFall.

At the time the fifth season of Samurai Jack was being released, series creator Genndy Tartakovsky was asked about Baldwin's casting and made the following statement in an interview with The Verge: "It was hard.

[6][7] His voice can also be heard in numerous other video games, including Tom Clancy's Rainbow Six: Lockdown, Assassin's Creed: Brotherhood, F.E.A.R.

On April 2, 2021, Baldwin announced that he was cast in an undisclosed original role for the Disney Television Animation program, The Ghost and Molly McGee.