File:Alonzo Thomas Inge Int Tour 2019.jpg

Source. Probably the first time he'd been on as Alonzo, judging by the comments from other cast members and the tone of his post (he usually makes a 'hello Munk!' post the first time he covers Munkustrap for a given production). And judging by Cian's comment ("Alonzo split track Carbucketty/ Coricopat/ Bill Bailey/ Admetus 😜") it only happened because they were down by an unusual number of cast members: possibly he played Alonzo/Macavity plus helped to fill the gaps in blocking left by the other missing boys.