Kelsey Grammer insists his latest marriage will be his last.

The actor wed fourth wife Kayte Walsh earlier this year and despite having three failed unions behind him, the 56-year-old actor is convinced this union will stand the test of time.

He said: "I think I did get the marriage right this time. I think Kayte had everything to do with that." 

Kelsey - who is 26 years older than his British wife - also spoke of the couple's first date in London last December, saying he knew straight away he wanted to marry her.

During an appearance on TV show 'Good Morning America', he said: "It was the most dramatic night of my life. It was extraordinary. 

"I saw her across the street and I just stood there and looked and thought this is the most marvellous thing I've ever seen in my life. We walked through Hyde Park and the snow started to fall. Moments later we had our first kiss and we've been together since."

Before tying the knot with Kayte, Kelesy had to finalise his divorce from third wife Camille Grammer and he recently accused her of only marrying him because she thought he would be similar to the "stylish" titular radio psychiatrist character he played in sitcom 'Frasier'.

The actor - who is currently in a custody battle with Camille regarding their two children, daughter Mason, nine, and six-year-old son Jude - said: "I think she married me because I was Frasier.

"Frasier had this great wonderful life ... he was stylish ... and just a little gay ... Kelsey Grammer is a different story. You got home and Kelsey Grammer was somebody different."