Wonderful small venue at the OSF. The Allen Elizabethan Theater is amazing and a gorgeous outdoor venue that I loved, but the Thomas Theater provides an intimate theatrical experience that cannot be had in the other two theaters at OSF. I saw two productions here during the 2025 season and thoroughly loved my experience. I got the lowest tier tickets and my seats were great...not a bad seat in the house here! Do make sure you get tickets early for these shows if they're a priority; the small capacity means it can sell out quickly. read more