Alan Oppenheimer’s career as an actor and voice actor has spanned almost five decades in television, film and video games! He is Skeletor, Battle-Cat, Cringer, Man-At-Arms and Mer-Man in He-Man and the Masters of the Universe and She-Ra: Princess of Power! He is Warpath, Beachcomber, Breakdown and Seaspray in The Transformers! He starred as Dr. Rudy Wells in The Six Million Dollar Man! He was the voice of Mighty Mouse! He starred in The Never Ending Story as Falkor, G’Mork and Rockbiter! He is Vanity Smurf in The Smurfs! He is Promethus in God of War II! He has appeared in three different Star Trek series (Next Generation, Deep Space Nine and Voyager)!

As a voice actor for cartoons Alan has starred in He-Man and the Masters of the Universe (Skeletor, Man-At-Arms, Mer-Man, Battle-Cat and Cringer), She-Ra: Princess of Power (Skeletor, Man-At-Arms, Mer-Man, Battle-Cat and Cringer), Transformers (Warpath, Beachcomber, Breakdown, Seaspray), The New Adventures of Mighty Mouse (Mighty Mouse), Flash Gordon (Ming the Merciless, Hans Zarkov), The Smurfs (Vanity Smurf, Father Time), Ghostbusters (Prime Evil), The Big O (Norman Burg), Chuck Norris: Karate Kommandos (President), Superman/Batman: Public Enemies (Alfred Pennyworth), Tarzan, Lord of the Jungle (Tomos, Orbin, Phobeg), Bionic Six (Metalhead, Professor Amadeus Sharp), Blackstar (Carpo, Overlord, Crios, Shaldemar, Thorg), Shazam! (Dr. Sivana, Mr. Samson), Rambo (Col. Samuel Trautman), Grim Adventures of Billy & Mandy (Father Time, Mighty Moe), Phantom 2040 (Prof. Jack Archer), BraveStarr (Handlebar, Outlaw Scuzz, Mr. Frog, Stampede), Trollkins (Sheriff Pudge Trollsom), Fantastic Four (Uatu the Watcher, Firelord), The Legend of Prince Valiant (Merlin), Slimer! And the Real Ghostbusters (Goolem, Morris P. Grout), Pryde of the X-Men (The Blob), Superman (Jonathan Kent), Scooby-Doo and the Reluctant Werewolf (Mummy), Thundarr the Barbarian (Mindok The Mind Menace, Muragg, The Old Wizard), Drak Pack (Count Dracula), The 13 Ghosts of Scooby-Doo, Pound Puppies, GoBots, Wuzzles, Centurions: Power X Treme, Scooby-Doo and Scrappy-Doo, The Secret Life of Bees, Batman: The Animated Series, Tom & Jerry Kids Show, The Little Mermaid, Fish Police, Where’s Waldo, James Bond Jr., Captain Planet and the Planeteers, TaleSpin, DickTales, Chip 'n' Dale Rescue Rangers, Battle of the Planets, A Pup Named Scooby-Doo, Adventures of the Gummi Bears, The New Tom & Jerry Show, Hong Kong Phooey, Speed Buggy, Goober and the Ghost Chasers, Inch High, Private Eye and The New Scooby-Doo Movies. 

His television credits include: The Six Million Dollar Man (Dr. Rudy Wells), Star Trek: The Next Generation (Koroth), StarTrek: Deep Space Nine (Captain Keogh), Star Trek: Voyager (Nezu Anbassador), Passions (Alistair Crane), Murphy Brown (Eugene Kinsella), The Wizard of Oz (Wizard), Happy Days (Mickey Malph), Valley of the Dinosaurs (Gorak), Big Eddie (Jessie Smith), Get Smart, Hogan's Heroes, The Partridge Family, Mama's Family, Who's the Boss?, L.A. Law, Matlock, Night Court, Knight Rider, Trapper John, M.D., Hotel, St. Elsewhere, Gimme a Break!, Private Benjamin, Barney Miller, Hart to Hart, It's a Living, Foul Play, Lou Grant, Flo, Alice, Vega$, What's Happening!!, Soap, Hawaii Five-O, Welcome Back Kotter, Gemini Man, S.W.A.T., Harry O, Medical Center, Mannix, The New Perry Mason, Marcus Welby, M.D., The Doris Day Show, Here’s Lucy, Bonanza, Bewitched, The Courtship of Eddie's Father, Mod Squad, The Jimmy Stewart Show, McCloud, Love, American Style, That Girl, I Dream of Jeannie, Ironside, The Bill Cosby Show, The Queen and I, Lancer, The Outsider, Get Smart, The Andy Griffith Show, In the Heat of the Night, I Spy, The F.B.I., The Hero, Felony Squad, The Defenders Quantum Leap, 'Til Death, Gilmore Girls, The Practice, Chicago Hope. Diagnosis Murder, Touched By An Angel, Caroline in the City, Silk Stalkings, Murder, She Wrote, Married with Children, Coach, Mr. Belvedere and much, much more!