dmessing021611_01_X17WM230.jpgDebra Messing and her husband of ten years, Daniel Zelman, split earlier this year, and already, she has a new man!

The former Will & Grace star is now dating her Smash co-star Will Chase, according to People.

On the NBC show premiering in February, Messing, 43, and Chase, 41, play "married people who are romantically entangled."

The new couple have been dating for six weeks. A source tells the mag:

    "They had so many scenes together and they were playing people with a romantic past so it didn't seem odd. Things only really started to heat up between them several weeks ago."

Messing and Zelman are the parents to 7-year-old son Roman. Chase has two children from a previous marriage.

The source adds, "This is all very, very new."