Add a text box to rdlc design where you want to display check box. Go to properties of texbox and change font to Wingdings.
Take a boolean column in data table to show check/uncheck in text box. Add a expression for that text box.
If check box with check is needed then use Chr(254). It will show sqare with check mark.
If check box with uncheck is needed then use Chr(168). It will show square with uncheck mark.
Expression for text box: = IIf( First(Fields!BooleanColumnValue.Value, "DataSet"), Chr(254), Chr(168))