Kelsey Grammer with ex-wife Camille (WENN.COM)

Kelsey Grammer pulled out of a TV interview with Piers Morgan at the last minute on Wednesday after spotting a photo of his ex-wife in the opening titles, according to the show host.

The former Frasier star was billed as a guest on Piers Morgan Tonight, but he allegedly bolted after producers included a photo of his third wife, Camille Grammer, in the CNN series' opening sequence.

Morgan was baffled by the no-show and took to Twitter.com to explain his guest's absence, telling followers, "Kelsey Grammer was supposed to be on my show now but ran out of the building. Strange."

Moments later, he updated fans by tweeting:

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. — Piers Morgan (@piersmorgan) September 20, 2012

I like Kelsey Grammer personally, but this was a shockingly unprofessional thing to do. I wasn't even going to mention his ex-wife! — Piers Morgan (@piersmorgan) September 20, 2012

A representative for Grammer says in a statement, "Piers needs to take responsibility for what he did to Kelsey. It's called accountability."

Last month, Grammer refused to utter Camille's name during a chat with TV host Oprah Winfrey, simply referring to the reality TV star as "that person".

The couple endured a bitter divorce and custody battle after splitting in 2010, and the actor went on to marry Kayte Walsh in February.