Petra, not sure but perhaps some of his entourage for his con appearance.
Sarah, I'm quitting LoT after S2. Imo, you're not really missing much.
Btw, the newest LoT ep had a scene where Rip was baking a cake and it looks like it has Gallifreyan on it. He also put a bowtie on top of the cake.
I'll look for a gif and post it here.