Bill was played by Alex Winter whereas Ted was played by Keanu Reeves .
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Bill & Ted's Excellent Adventure (1989) starred Keanu Reeves and Alex Winter as the heroes, Ted Logan and Bill S. Preston Esq. Known to themselves as The Wyld Stallyns rock duo.
I think you mean the sequel, Bill and Ted's Bogus Journey. William Sadler played Death.
The late legendary comedian George Carlin.