In der TV-Serie ''Petrocelli'' (1974-1976, u.a. mit [[Michael Bell]], [[David Huddleston]], [[William Bramley]], [[John Crawford]], [[Glenn Corbett]], [[Jeff Allin]], [[Morgan Woodward]], [[Rosemary Forsyth]], [[William Windom]], [[William Shatner]], [[Diana Ewing]], [[Peter Mark Richman]], [[Susan Oliver]], [[Gregory Sierra]], [[Lance LeGault]], [[Noble Willingham]], [[Eric Server]], [[Joseph Mell]], [[Torin Thatcher]], [[Whit Bissell]], [[Walker Edmiston]], [[John Anderson]], [[Paul Carr]], [[Julie Cobb]], [[Arlene Martel]], [[Robert Mandan]], [[Kenneth Tobey]], [[Claudette Nevins]], [[Alan Oppenheimer]], [[Fritz Weaver]], [[Gloria Calomee]], [[John Colicos]], [[Kim Darby]], [[Robert Symonds]], [[Don Most]], [[Elinor Donahue]], [[Marj Dusay]], [[Chuck Hicks]], [[Robert Hooks]], [[Salome Jens]], [[Barbara Luna]], [[Logan Ramsey]], [[Madlyn Rhue]], [[Steve Sandor]], [[Warren Stevens]], [[Jeff AllinFred Carson]], [[Fred CarsonJoseph Campanella]], [[Ward Costello]], [[Joanna Miles]], und [[Phillip Pine]]) spielte sie als eine der Hauptfiguren die Rolle der Maggie Petrocelli.

In 198 Folgen der TV-Serie ''Dallas'' (1979-1987, u.a. mit [[Joshua Harris]], [[John Beck]], Morgan Woodward, [[William Smithers]], [[Leigh J. McCloskey]], [[Paul Sorensen]], [[Mary Crosby]], [[Barry Jenner]], Glenn Corbett, [[Barbara Babcock]], [[Derek McGrath]], [[Monte Markham]], John Anderson, [[Ray Wise]], [[Bruce Gray]], [[Peter White]], Michael Bell]], [[Evelyn Guerrero]], [[Ted Gehring]], [[Bruce French]], Joanna Miles, [[Charles Napier]], [[Kenneth Tigar]], Paul Carr, Walker Edmiston, [[Kenneth TigarConroy Gedeon]], [[Liam Sullivan]], [[Richard Herd]], [[Ellen Bry]], [[Mitchell Ryan]], [[James Cromwell]], [[Gail Strickland]], Rosemary Forsyth, [[Allan Miller]], [[Kenneth A. White]], [[J. Patrick McNamara]], [[Beau Billingslea]], [[Robert Walker]], [[Jean-Paul Vignon]], [[Richard Derr]], [[Sam Anderson]], Chuck Hicks, [[Joanna Cassidy]], [[Henry Darrow]], William Windom, [[George Coe]], [[Jerry Hardin]], [[Robert Sampson]], [[John Larroquette]], [[Parley Baer]], [[Rod Arrants]], Robert Symonds, [[Erik Holland]], [[Sam Anderson]], [[Warren Munson]], [[John Hostetter]], [[Jack Axelrod]], [[Bob Herron]],[[Tricia O'Neil]], [[David L. Crowley]], [[Biff Yeager]], [[John D. Gowans]], [[Daniel Zacapa]], [[Noble Willingham]], [[Bibi Besch]], [[John Crawford]], [[Bill Erwin]], [[Kay E. Kuter]], [[Susan French]], [[William Lucking]], [[George D. Wallace]], [[Ronnie Claire Edwards]], [[Tracy Scoggins]], [[Randy Oglesby]], [[William Wellman Jr.]], [[Byron Morrow]], [[John Wheeler]], [[Clyde Kusatsu]], [[Robert Pine]], [[Joel Brooks]], [[Bill Quinn]], Marj Dusay, [[Robert Harper]], [[Vince Howard]], [[Michael Champion]], [[Brenda Strong]], [[Paul Comi]], [[Roy Jenson]], [[Phillip R. Allen]], [[Don Eitner]], [[John HostetterRyan MacDonald]], [[Paul Lambert]], [[Davis Roberts]], [[Bill Zuckert]], [[Wren T. Brown]], [[Paddi Edwards]], [[Larry Cedar]], [[Gregory Itzin]], [[Derek Partridge]], [[Kate Vernon]], [[Fran Bennett]], [[Wayne Grace]], [[Tim O'Connor]], [[Michael Canavan]], [[William Boyett]], [[Sam Hennings]], [[Morgan Jones]], [[Brett Baxter Clark]], [[Lawrence Montaigne]] und [[John Kenton Shull]]) spielte Howard die wiederkehrende Rolle der Donna Culver Krebbs.