Joe Kohen/Getty ImagesWe now know what sent Stacy Keach to the hospital: a stroke.
"He experienced a very mild stroke with no impairment whatsoever of his motor or speech abilities," publicist Dick Guttman said in statement Wednesday. "He remains in a Los Angeles hospital for observation and routine precautionary procedures."
No other details were released.
The ailment forced the 67-year-old thesp to bow out of Tuesday night's performance of the touring production of Peter Morgan's Frost/Nixon at Los Angeles' Ahmanson Theatre, for which he's won plaudits as Richard Nixon. The show went on with his understudy, Bob Ari, stepping in, and is scheduled to run through March 29.
Keach was Mickey Spillane's gumshoe Mike Hammer on the 1980s CBS series Mike Hammer: Private Eye. He won a Golden Globe as Ernest Hemingway in the acclaimed 1988 TV biopic and more recently played the embattled warden on Fox's Prison Break.
(Originally published March 18, 2009 at 6:55 a.m. PT.)