"Henry Winkler joins <i>Royal Pains</i>Variety reports that Henry Winkler (Happy Days) is joining the cast of Royal Pains.

Winkler will appear in the second season of this USA Network show as an "absentee father to the characters played by Mark Feuerstein and Paulo Costanzo." Royal Pains recorded the top 18-49 demographic and total viewers for a new series in cable history.

The second season will have 18-episodes and it will begin shooting in the summer. The first season was 12-episodes.