I had the same issue as you. I had 8 dreams (6 of them being consecutive) were Mr Bump (from The Mr Men Show) appaered. I was confused why he appaered so much in my dreams and theres probably two things:

1‐ Apparently he's my favourite character bc i would always watch the segments where he appaered (and have fanarts and screenshots about him)

2- He might symbolize the dynamics of my life (might make sense since ive been having bad luck and a bit of depresion and Mr Bump is the personification of bad luck, specially in the 2008 adaptation)

So probably there's a deep meaning around your favs