Doppelgangers

Summary

Marshall and Lily make a secret pact to start trying to have a baby if they ever finally see Barney's doppelganger. Meanwhile, Robin finally gets an offer for her dream job.

Guest stars

• Benjamin Koldyke as Don Frank
• Bonnie Bailey-Reed as Flo
• Brianna Belladonna as Petra
• Lyndsy Fonseca as Daughter
• David Henrie as Son