Mako Iwamatsu
During an Avatar: The Last Airbender episode, titled "The Tales of Ba Sing Se" (episode 15 of the second season), which comprises several small stories about the main characters, there is a segment titled, "The Tale of Iroh." It features a dedication to Mako, as he was the voice actor for the character Iroh for the first and second seasons. He was also featured in the Memoriam Montage in the 79th Academy Awards.