Answer by taking a quote from the following article:

Craig Ferguson (born 17 May 1962) is a Scottish-American television host, comedian, author and actor. He was the host of both the syndicated game show Celebrity Name Game (2014-2017), for which he has won two Daytime Emmy Awards, and of Join or Die with Craig Ferguson (2016) on History. He was also the host of the CBS late-night talk show The Late Late Show with Craig Ferguson (2005-2014). In 2017 he released a show with his wife Megan, titled Couple Thinkers.

In an episode of The Late Late Show that aired 8 December 2008, a somber Ferguson talked about his mother, Janet (3 August 1933 - 1 December 2008). He ended the programme by playing her favourite song, "Rivers of Babylon" by Boney M. Ferguson eulogised his father on-air on 30 January 2006.  Ferguson has two sisters (one older and one younger) and one older brother. His elder sister's name is Janice and his brother's name is Scott. His younger sister, Lynn Ferguson Tweddle, is also a successful comedian, presenter, and actress, perhaps most widely known as the voice of Mac in the 2000 stop-motion animation film Chicken Run. She was a writer on The Late Late Show until July 2011.  Ferguson has married three times and divorced twice as a result of what he describes as "relationship issues". His first marriage was to Anne Hogarth from 1983 to 1986, during which time they lived in New York. His second marriage was to Sascha Corwin (founder and proprietor of Los Angeles' SpySchool), with whom he has one son, Milo Hamish Ferguson, born in 2001. He and Corwin share custody of Milo, and live near each other in Los Angeles. On 21 December 2008, Ferguson married art dealer Megan Wallace-Cunningham in a private ceremony on her family's farm in Chester, Vermont. Ferguson announced in July 2010 that they were expecting a child. He wrote: "Holy crackers! Mrs F is pregnant. How did that happen? ... oh yeah I know how. Another Ferguson arrives in 2011. The world trembles." The child, a boy named Liam James, was born 31 January 2011.

who is his current wife?
Ferguson married art dealer Megan Wallace-Cunningham