James Doohan (search) beamed his way through the first of a series of events honoring him in what are expected to be his final public appearances.
The 84-year-old actor who played "Scotty" on "Star Trek" (search) laughed and smiled throughout a Hollywood tribute Saturday night featuring fellow cast members and about 600 guests.
Doohan was diagnosed with Alzheimer's disease (search) several months ago and the event at the Renaissance Hollywood Hotel served as a fund-raiser for an Alzheimer's research foundation.
Doohan, whose character was Chief Engineer Montgomery Scott of "Beam me up, Scotty" fame, was to appear Sunday on a stage with the entire surviving cast of the original sci-fi series, including William Shatner (search) (Capt. Kirk) and Leonard Nimoy (search) (Mr. Spock). He is getting a star Tuesday on the Hollywood Walk of Fame.
The events are expected to be the final public appearances for Doohan, who also suffers from Parkinson's disease and diabetes.
On Saturday, Doohan was heralded by a bagpipe player and speakers included Walter Koenig, who played Pavel Chekov on "Star Trek."