18 May
A list of events which occurred on the 18th of May.

Wally Rose is born.

Joseph Westheimer is born.

Liam Sullivan is born.

Erik Holland is born.

Elizabeth Rogers is born.

Andreas Katsulas is born.

Gail Strickland is born.

Diane Duane is born.

Carrie Henger is born.

Sixth day of filming on .
Second revised story outline submitted for the undeveloped Original Series episode "He Walked Among Us" by Norman Spinrad and Gene L. Coon.

Lisa Randolph is born.

Stephen D'Amato is born.

Jim Goodwin dies.

Richard Hale dies.

Musical score for  is recorded.
Jill Ireland dies.

 airs.

Thirty-seventh day of filming on .

Elisha Cook dies.

Thirty-fifth day of filming on .

Fifth day of filming on .

Star Trek: Voyager season 2 DVD released in Region 1.

Star Trek: First Contact (Special Edition) DVD released in Region 4.

Joseph Pevney dies.

Wayne Allwine dies.

IDW Publishing releases issue #3 of Star Trek: Manifest Destiny.

Robin Ritter dies.

Unknown year
Shannon Lahaie is born.

de:18. Mai
es:18 mayo
it:18 maggio
nl:18 mei
pt:18 de maio
ru:18 мая
sv:18 maj