Trivia: Roger C. Carmel, best known as Star Trek's Harry Mudd, played KGB agent Misha Toptegan in this episode. But his end credit lists the character as "Misha the Bear." This was a joking reference to Carmel's years as the voice of Smokey the Bear in hundreds of public service announcements throughout the 1960s.
Trivia: CBS had to reschedule this episode twice after pre-emptions for speeches by President Nixon. When Secretary of State Henry Kissinger visited Hawaii and asked to tour the Five-O studio, producer Leonard Freeman asked him for a favor in return. Could he talk to the president about that speech schedule? Within a week, Nixon's speeches were moved to a different night.
Answer: He was fired. He never really appreciated his character. He felt Kono was portrayed as a big dumb Hawaiian and that the stereotype was racist. He also felt underutilized. He was fired after a heated argument with the show's publicist regarding his character. It seems there's not much details given regarding the incident or the firing, so it's seems possible he upset the show's producers as well.
Bishop73
No he said something derogatory about one of the Jewish producers that's why he was fired.