Sep. 20, 2012 at 9:40 AM ET
Piers Morgan tweeted Wednesday night that Kelsey Grammer abruptly left his set moments before the CNN host was set to interview the star of Starz's "Boss."
"Kelsey Grammer was supposed to be on my show now but ran out of the building. Strange," Morgan tweeted.
He later added: "So, Kelsey Grammer saw a photo of his ex-wife Camille in the open to our show and legged it. Extraordinary. Never had this happen before. ... I like Kelsey Grammer personally, but this was a shockingly unprofessional thing to do. I wasn't even going to mention his ex-wife!"
The actor's spokesman, Stan Rosenfield, told The Hollywood Reporter: "Piers needs to take responsibility for what he did to Kelsey. It's called accountability."
Grammer was ostensibly set to appear on "Piers Morgan Tonight" to promote the second season of "Boss," in which he plays Tom Kane, the fierce mayor of Chicago who battles foes both political and personal while combating an incurable disease he's keeping secret.
Grammer and Camille, who appeared on the first season of Bravo's "The Real Housewives of Beverly Hills," divorced last year after 13 years of marriage. They have two kids together.
She once blamed the actor’s commitment to watching Fox News for the couple’s soured relationship, while he has said in a previous appearance on "Piers Morgan Tonight" that she "married me because I was Frasier," referring to his role as Dr. Frasier Crane on "Cheers" and "Frasier."
In February 2011, Grammer married Kayte White, with whom he welcomed a daughter named Faith Evangelina Elisa in July, a month after renewing their vows.