His voice credits go back to the early sixties and stretch right up through Pixar's "A Bug's Life", released in 1998. He has also voiced many characters on "The Tick", and his "straight" narrator's voice has graced the likes of PBS's "NOVA", NPR's "The Sunday Show" and the rock and roll hall of fame's "I Want To Take You Higher", a nationally-broadcast multi-program tribute to the psychedelic ERA.

As one-quarter of the Firesign Theatre since 1966, he's co-crated over 20 albums. He also wrote the liner notes for "The Best of Bill Cosby" when he was working for Warner Bros. in the 1960's, and guested on Chad and Jeremy's critically-acclaimed album "Of Cabbages and Kings".

His most recent releases as a writer-director include Raymond Chandler's "Goldfish" (a radio noir production featuring Harry Anderson and Harris Ylin), and "Empire of the Air" (a dramatic account of radio's history, based on the best-selling book by Tom Lewis), starring David Ogden Stiers, Bonnie Bedelia and Steve Allen. Ossman also directed Norman Corwin's "We Hold These Truths" (a celebration of the 100th anniversary of the Bill of Rights), and updated the legendary radio broadcast "War of the Worlds" on it's 50th anniversary.

Ossman's poetry, translations, scripts and miscellaneous non-fiction have been published in limited editions, magazines and periodicals and in several anthologies. His collection of radio interviews, "The Sullen Art" (Corinth Books) is considered a classic in the history of Beat-ERA Poets.

Recently, he has appeared on stage with Michael Learned in A.R. Gurney's "Love Letters", as the lead in "Love is a Place", and E.E. Commings cabaret and as Mark Twain in solo performances across the country.

Ossman and his wife, Judith Walcutt, live on Whidbey Island in Puget Sound, North of Seattle, Washington. They jointly manage Otherworld Media and just released an audio adaptation of L. Frank Baum's "The Wonderful Wizard of OZ", featuring an all-star cast including Annette Bening, Phyllis Diller, Mark Hammil, Mako, Rene Auberginous, Robert Guillaume, John Goodman, and the Firesign Theatre.