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Sister of critically acclaimed singer/songwriter Mary Margaret O'Hara. She was part of the group Northern Lights who sang the song "Tears Are Not Enough" which was on the "We Are The World" album. Crowned Queen of Comedy after her years as a regular on SCTV, better known as SCTV. Catherine O'Hara has an almost religious cult following around the world. A high school friend of Robin Duke at Burnhamthorpe Collegiate in Etobicoke, Ontario, Canada. They first acted together in a school production of "Harvey". Her sons were born in 1994 and 1997. Is one of 7 children. Sons names are Dylan and Matthew. Became a U.S. citizen. Third generation Irish/Canadian/Catholic. Wrote SCTV's famous sketch "High-Q", considered one of the funniest sketches on SCTV. Composed the two songs she and her sister Mary Margaret O'Hara and friend Robin Duke performed in The Last Polka. Owns a cottage (along with her husband Bo Welch) in Muskoka, Ontario. Learned to play the autoharp for her role in A Mighty Wind. Gave a tearful eulogy at the funeral for John Candy. Went to the same high school as fellow Canadian entertainer Dave Foley.