Beyond The Threshold

1920 – Shelagh Fraser, actress (Star Wars)
1920 – Noel Neill, actress (Adventures of Superman, Superman, Atom Man vs. Superman, Invasion U.S.A. , Superboy, Superman Returns)
1920 – Ricardo Montalbán, actor (Star Trek, Star Trek II: The Wrath of Khan, Conquest of the Planet of the Apes, Escape From the Planet of the Apes )

Recardo Montalban in Star Trek II reprising his role from the TV series.

 
1926 – Jeffrey Hunter, actor (Star Trek, Dimension 5)

Jeffery Hunter in Star Trek

Poul [William] Anderson, sci-fi author (7 Hugos, Mirkheim, The Technic History series, Hoka, Tales of Known Space)

1936 – Matt Clark, actor (Lois & Clark, Back to the Future Part III, Buckaroo Banzai, The Terminal Man)

1942 – Tracey Walter, actor (Independence Day, Star Trek: TNG, Not of This World, Alien Nation, Timestalkers, Repo Man, Timerider: The Adventure of Lyle Swann)
1943 – Beverly Washburn, actress (Spider Baby, Star Trek, Superman and the Mole-Men)
1944 – Paul Copley, actor (Torchwood)
1945 – Mary Jo Deschanel, actress (2010)
1047 = John Larroquette, actor (Star Trek III: The Search for Spock, Twilight Zone: The Movie, Mork & Mindy, Altered States)

1947 – Jeff Doucette, actor (Earth Fall, Dollhouse, Invasion, 3rd Rock from the Sun, Babylon 5: The River of Souls, Weird Science (TV), Mom and Dad Save the World, They Came from Outer Space, ALF, Alien Nation, Martians Go Home, Brave New World)
1947 – Tracey Walter, actor (Independence Day, Star Trek: TNG, Not of This World, Alien Nation, ALF, Timestalkers, Timerider: The Adventures of Lyle Swann)
1948 – Joyce Cohen, actress (Independence Day)
1948 – Kathy Silva, actress (Soylent Green)

1953 – Mark Frost, writer (The Six Million Dollar Man)
1955 – Bruce Hopkins, actor (Cleopatra 2525)
1958 – Darlanne Flugel, actress (The Twilight Zone, Battle Beyond the Stars)

1963 – Kevin Chamberlin, actor (Heroes)
1965 – Dougray Scott, actor (Doctor Who, The Day of the Triffids (2009), Dr. Jekyll and Mr. Hyde (2008), Perfect Creature, Deep Impact)
1966 – Billy Burke, actor (Revolution, Fringe, VR.5, Star Trek: DS9)

1968 – Jill Hennessy, actress (RoboCop 3, War of the Worlds (TV))
1968 – Matthew Sharp, actor (10.5, Cypher)
1968 – Joher Coleman, actor(Earth Girls Are Easy)

1971 – Hank Mann, actor, d @ 84 (Space Master X-7 , Abbott and Costello Meet Dr. Jekyll and Mr. Hyde)
1971 – Christina Applegate, actress (Nowhere, Mars Attacks!)
1973 – Stefanie von Pfetten, actress (Eureka, Battlestar Galactica, Andromeda)
1973 – Eddie Steeples, actor (Zombie Apocalypse)
1974 – Kenneth Mitchell, actor (Astronaut Wives Club, Meteor, Odyssey 5)
1977 – Marianthi Evans, actress (Defiance)
1979 – Joel Kinnaman, actor (RoboCop)
1979 – Jerry Ferrara, actor (7500, Battleship)

1982 – Jordon Lawson, actor (Rise of the Dinosaurs, Silent Night Zombie Night, LG15: The Resistance)

1991 – Eleanor Audley, actress, d @ 86 (Twilight Zone)
1997 – Charles Hallahan, actor, d @ 54 (The Thing, Twilight Zone: The Movie, Roswell, The Visitor)

A twofer in the pictures today as there were to icons in the genre.