Portrait of Mark O'Connell

Mark O'Connell

Bio: Mark Eugene O'Connell, formerly known as Mark Gehred-O'Connell, is an American screenwriter and author, best known for his work on the TV series 'Star Trek: Deep Space Nine' and his biography of astronomer and ufologist J. Allen Hynek
Born: Unknown birthdate.
Mark O'Connell is ?
External Links
IMDb logo
Sort by Popularity
Scroll to TV Credits
Acting Roles
Crew Roles

Movies (Acting Roles)

Sorted by Release Date

TV Shows (Acting Roles)

Sorted by Release Date
Ages in TV shows are based off the first air date and may not be accurate. View individual episode details for accurate ages
Poster of UFOs: Investigating the Unknown
UFOs: Investigating the Unknown
Mark O'Connell was
? in UFOs: Investigating the Unknown
as 'Self – Author, J. Allen Hynek Biography'.
First Air Date
Mon, Feb 13 2023
Poster of UFO Witness
UFO Witness
Mark O'Connell was
? in UFO Witness
as 'Self - UFO Historian'.
First Air Date
Sun, Jan 10 2021