who are some actors who played a role in a movie, then played the same role in a show that was made from the movie?

Gary Burghoff played Radar in the movie "MASH" then played him in the series.
Gene Wood played Gen. Hammond in the movie "MASH" then played him in the series.

Bruce McGill played D Day in the movie "NATIONAL LAMPOONS ANIMAL HOUSE" and also played him in the short-lived horrible TV version "DELTA HOUSE"
Some of the other actors from that movie also played the same roles in that HORRIBLE TV series.

Olivia Newton John, and a few other cast members, reprised their roles for the short-lived comedy series Sordid Lives.

Donald Faison and Stacey Dash reprised their roles for the Clueless tv show. Twink Campbell and Wallace Shawn also guest starred as their character from the movie.

Eileen Brennan (Captain Doreen Lewis) Private Benjamin

Stephen Furst (Kent 'Flounder' Dorfman) Animal House/Delta House

Though not technically the same character Connie Britton played the head football coach's wife in both the film and series Friday Night Lights.

Christopher Lambert appeared in one episode of Highlander as Connor MacLeod, the role he played in the Highlander film series.

Vic Tayback played Mel in both the movie "Alice Doesn't Live Here Anymore" and the TV series "Alice."

Tracy Reiner and Megan Cavanagh reprised their roles from the movie "A League of Their Own" in the short lived TV series of the same name.

Some of the cast of Kevin Smith's Clerks did their character voice-overs for the short-lived Clerks: The Animated Series.

Larry Miller reprised his role for the 10 Things I Hate About You series.

Robert Englund played Freddy Krueger in Freddy's Nightmares.

From the film Clarence, the Cross-Eyed Lion (1965), Marshall Thompson and Cheryl Miller reprised their roles as Marsh and Paula for the Daktari TV series - as did Clarence!

Nia Vardalos, and a few other cast members, reprised their roles for the short-lived My Big Fat Greek Life sitcom.

Tyne Daly and Al Waxman who played their roles on the Cagney and Lacey TV movie were the only two cast members to reprise their roles for the TV show.

Yul Brynner reprised his "King Mongkut" role for the short-lived Anna and the King.

Michael Gross came back for the TREMORS tv-series.

Michael Gross came back for the TREMORS tv-series.

And Robert Jayne(Bobby Jacoby) came back as Melvin Plug.

Anthony Daniels has provided the voice for C3-PO on Droids, Star Wars: The Clone Wars, and is appearing in the upcoming live action Star Wars series.

John Houseman reprised for "The Paper Chase" series.