he "worked as an entertainment writer for Toronto Telegram". He was a film and theatre critic for them until his first play, Everyone Except Mr. Fontana presented in 1968. In 2002, Dennis wrote three articles for the Calendar section of the Los Angeles Times about Ivor Novello, Phil Gersh, and Julian Fellowes. In February 2010 he wrote an article on Christopher Plummer in The Hollywood Reporter. Author His first novel, Stoned Cold Soldier was published in 1973. In 1997 (using the pseudonym Margaret Barrett), Dennis wrote the novels "Given the Crime" and "Given the Evidence". His works have received favorable response from Kirkus Reviews. His new novel, "Hollywood Raj", was published by Vingsbo Press in February 2018. In 2022, Dennis's first non-fiction book, "There's a Body in the Window Seat", was published by Applause Books. A passion project of Dennis's, the book is a history of Arsenic and Old Lace, both the play and the movie. Bibliography 2022 "There's a Body in the Window Seat" ISBN 9781493067855 2018. "Hollywood Raj" 2013 "The Magiker" ISBN 978-1 -940412-02-3 1998, Given the Evidence 1998, Given the Crime 1987, Shar-Li 1975, This War Is Closed Until Spring 1981, The Dealmakers 1979, Bonfire 1978, The Periwinkle Assault 1977, A Divine Case of Murder 1975, Somebody Just Grabbed Annie! 1974, The Next-to-Last Train Ride 1973, Stoned Cold Soldier Television, film, and video In 1969 while living in London, Dennis adapted his play, Aztecs and Orange Juice, for ATV and appeared in it opposite Derek Fowlds and Cheryl Kennedy. In 1973, he created Thames Television's first daytime drama, Marked Personal starring Stephanie Beacham. He wrote the Television movies Mirror, Mirror in 1979 and The Jayne Mansfield Story in 1980. He wrote and appeared in the 1984 movie Covergirl opposite Kenneth Welsh, William Hutt and August Schellenberg. In 1984, he wrote and directed the motion picture Reno and the Doc starring Kenneth Welsh and Linda Griffiths, which in 1985 was nominated for four Genie Awards. Also in 1984 he co-authored a screenplay of his novel The Next-to-Last Train Ride for a film which was directed by Richard Lester and released under the title Finders Keepers. Vincent Canby in The New York Times described it as "a genially oddball comedy of a sort not often successfully made these days." In 2004, Dennis was the voice of Rico in Disney's animated feature Home on the Range. In 2007, Dennis wrote