Jetanien was a Rigellian Chelon who served as a senior Federation diplomat in the 23rd century. Known as a wise and learned statesman, he was assigned in 2265 to Starbase 47, where he supervised a staff of envoys, attaches and aides to deal with diplomatic issues within the Taurus Reach.
While he had a wry sense of humor, particularly about the unpredicibility of diplomatic matters, he was also a powerful orator and tough negotiator. (VAN novel: Harbinger)