1
general::
Phrase(s): cast in the same mold
Fig. [of two or more people or things] very similar. • The two sisters are cast in the same mold—equally mean. • All the members of the family are cast in the same mold and they all had success as entertainers.
McGrawhill's American Idioms And Phrasal Verbs
2
general::
Bearing a close resemblance, as in All his detective stories are cast in the same mold. This term uses the verb to cast in the sense of forming an object by running molten metal into a mold. [Late 1500s]
American Heritage Idioms