These are the projects I acted in back in the 1990s. For a couple of them as a SAG (Screen Actors Guild) actor.
"Star Trek 7", Photo Double for Chekov - Paramount Pictures
"Oblivion 2", 500 ft Turtle-monster - Full Moon Entertainment
"Oblivion ", Mechanical Puppeteer - Full Moon Entertainment
"Night Skies", Mechanical Puppeteer - Modus FX
"Pet Shop", Mechanical Puppeteer - Full Moon Entertainment
"Prehysteria 1,2, & 3", Mechanical Puppeteer - Full Moon Entertainment
"Freaked", Mechanical Puppeteer - Tommy Productions
"Puppet Master 4 & 5", Mechanical Puppeteer - Full Moon Entertainment
"Sub Species 2", Mechanical Puppeteer - Full Moon Entertainment
"Diggstown", Man in crowd - Paramount Pictures
"Army of Darkness", Swordsman/Deadite - Western Renaissance
"Puppet Master 3", Nazi soldier - Full Moon Entertainment
"Trancers 2", Train Station Passenger - Full Moon Entertainment
"Twin Peaks" S2 E8, Bartender (Background) - Lynch/Frost
"Star Wars Galaxies", Various Event Characters - Sony Online Entertainment
"Tachyon: The Fringe", Pilot Dorwin - NovaLogic
"Meridian 59", Various Event Characters - 3DO
"Cordial Enemies", Danvic - Ithaca College
"Return of Tarlectra-man", No. 1 fan - Ithaca College
"The Nothing Special" sketch series, Lead - Ithaca College Broadcast
"Off The Wall" sketch series, Lead - Group W Productions
ITHACA COLLEGE - Various acting courses
HOLLYWOOD NORTH STUDIOS - Commercial Workshop
SCREEN ACTORS GUILD (SAG), FENCING, CHARACTER VOICES, PUPPETEER (MECHANICAL, RC, ROD)
IMDB Page (note: some credits like Editor and Director are for a different Kevin O'Hara for some reason)
first SAG role - Trancers 2 with Helen Hunt, yeah I'm pretty much a super star.
Puppet Master 3 - yeah, I played a Nazi
Deadite for The Army of Darkness
Double for Chekov in Star Trek Generations