The former "Cheers" star told the New York Post his estrangement began when he was "going through a lot of self-doubt; self-loathing,” and "drinking a lot."

Kelsey Grammer and Ted Danson are letting bygones be bygones. The fellow "Cheers" stars cracked open a long-running feud in recent months.

"It was at a time in my life when I was actually going through a lot of self-doubt, self-loathing, honestly," Grammer said. "It was when I was drinking a lot."