Alura – Supergirl

In another mom switch-up, Supergirl went through a relatively big recasting during the third season, when Smallville star Erica Durance replaced Laura Benanti. The original actress left the show because of her theater schedule.

Andrew Kreisberg, the executive producer, fully supported Durance as the replacement. He was sure that she would continue the “proud tradition of legacy actors joining our shows and creating new and exciting takes on classic DC characters.”