For its farewell season, The CW dramedy gave Rebecca Bunch’s old flame a new face, when Skylar Astin stepped into the role of Greg, who was played during the first two seasons by original cast member Santino Fontana.

(The Broadway-inclined Fontana had parted ways with the show when a Season 3 pickup looked iffy.)



Series creators Bloom and Aline Brosh McKenna said they gave Fontana a heads-up about the recast, and he in turn threw Astin his support, saying in an interview:

“I love Skylar! He’s a buddy of mine. We’ve been texting, we’ve got a whole back-and-forth going. We’re brothers from the same mother.”

https://tvline.com/lists/recast-tv-roles-explained/crazy-ex-girlfriend-greg/