Bill Callahan
Bill Callahan
Born: 1971
Wellesley, Massachusetts, USA
Occupation: Writer/Producer
Years Active: 1997-present
Bill Callahan was a writer and co-executive producer and for Psych. He has also written and produced for shows such as Scrubs, 8 Simple Rules, and Spin City, the last being where he got his start, as a story editor.

The episodes Callahan wrote are:

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