Dawidziak has written two non-fiction books about TV characters: The Columbo Phile: A Casebook, a history of Peter Falk's Lt. Columbo, and The Night Stalker Companion: A 30th Anniversary Tribute, a history of the Carl Kolchak character played by Darren McGavin in two TV movies and the 1974-75 ABC series. His 2003 book, Horton Foote's The Shape of the River: The Lost Teleplay About Mark Twain details the 1960 Playhouse 90 production on CBS.
Mark Twain studies
In addition to Horton Foote's The Shape of the River: The Lost Teleplay About Mark Twain, he assembled Mark Twain's thoughts on writing and the writing process for Mark My Words: Mark Twain on Writing. He also teamed with noted Twain scholar R. Kent Rasmussen for the chapter Mark Twain on the Screen published in A Companion to Mark Twain. He has twice been the visiting Twain scholar giving the Trouble Begins at Eightlecture at Elmira College's Center for Mark Twain Studies. He has presented academic papers at four consecutive State of Mark Twain Studies conferences : on The Shape of the River in 2001; on the many similarities between Twain and Charles Dickens in 2005; on the importance of Hal Holbrook's one-man show, Mark Twain Tonight!, in 2009; and on director-producer Will Vinton's Claymation film The Adventures of Mark Twain in 2013.
Dawidziak and Paul J. Bauer are the authors of the first full-length biography of writer Jim Tully. Titled Jim Tully: American Writer, Irish Rover, Hollywood Brawler, it was published by Kent State University Press in 2011 with a foreword by Ken Burns.
Horror
In addition to writing two non-fiction books about the Carl Kolchak character – Night Stalking: A 20th Anniversary Kolchak Companion and The Night Stalker Companion: A 30th Anniversary Tribute, Dawidziak has edited three collections of works by Richard Matheson, all published by Gauntlet Press: Richard Matheson's Kolchak Scripts, Bloodlines: Richard Matheson's Dracula, I Am Legend, and Other Vampires Stories and Richard Matheson's Censored and Unproduced I Am Legend Screenplay. His work in the horror field includes a 1994 novel, a play, short stories, comic book scripts and the non-fiction book The Bedside, Bathtub and Armchair Companion to Dracula.
Acting on stage
Dawidziak met his wife, actress Sara Showman, through the stage. In 2002, they founded the Largely Literary Theater Company, a touring troupe dedicated to promoting literacy, literature and live theater. The company's artistic director, he frequently appears in Largely Literary productions as Mark Twain and Charles Dickens. His two-act adaptation of Twain material, Twain By Three, was performed at the 103rd Annual International Dickens Fellowship Conference. His play The Mystery of Dashiell Hammett was premiered as part of Big Read initiative at Hiram College in 2009. His other plays include a two-act adaptation of Dickens' A Christmas Carol for three actors.
Series of lectures
Dawidziak currently is teaching part-time as an adjunct professor at Kent State University, in addition to writing for The Plain Dealer. He teaches the Reviewing Film and Television and Vampires in Film and Television courses. His first class was in the spring of 2009. He frequently lectures and gives talks on Mark Twain, Charles Dickens, television and vampires. On October 23, 2009, Dawidziak appeared at the Kent Stage, in Kent, Ohio, with the lecture "Haunted Theaters, Dracula & Me".
