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episode title: Blackmail

Air date: 1982-05-27

episode lenght: 50 minutes

Bobby Ewings worst fears are realized when Farraday is murdered but a much worse blackmailer takes his place, his brother, J.R. With copies of Christophers adoption records in his possession, J.R. realizes that he is probably the real father and now he can force Bobby to do his will so that Pam will never find out.::Anonymous (source imdb)

IMDB rating: 7.8

This exact episode (5/23): imdb number tt775192

Barbara Bel Geddes => imdb link: nm0000895
Patrick Duffy => imdb link: nm0001155
Linda Gray => imdb link: nm0336782
Larry Hagman => imdb link: nm0001306
Susan Howard => imdb link: nm0397622
Steve Kanaly => imdb link: nm0437076
Ken Kercheval => imdb link: nm0449242
Victoria Principal => imdb link: nm0000595
Charlene Tilton => imdb link: nm0005492
Leigh McCloskey => imdb link: nm0565907
Howard Keel => imdb link: nm0444476
Dennis Redfield => imdb link: nm0714836
Art Hindle => imdb link: nm0385543
Jonathan Goldsmith => imdb link: nm0326091
Fern Fitzgerald => imdb link: nm0280235
Tom Stern => imdb link: nm0827870
Bob Hoy => imdb link: nm0398338
Deborah Rennard => imdb link: nm0719612
Pamela Murphy => imdb link: nm0614580
Deborah Tranelli => imdb link: nm0870956
Sharon Madden => imdb link: nm0534642
Tom Regan => imdb link: nm0716486
Tyler Banks => imdb link: nm1212449

Most of the info found on this page was found on imdb