Abstract:  A number  of  observations  hints for  the  presence of  an
intermediate  mass black  hole (IMBH)  in the  core of  three globular
clusters: M15 and NGC 6752 in the  Milky Way, and G1, in M31.  I begin
reviewing  their   formation  channels  and   continue  exploring  the
observational  signs that  a  single  or binary  IMBH  can imprint  on
cluster stars  and millisecond pulsars.   In particular I  discuss the
role  played by  a binary  IMBH in  transferring angular  momentum and
energy  to stars  flying by.  Finally,  I investigate  shortly on  the
possibility of  unveiling IMBHs that experienced a  bright (ULX) X-ray
phase in young dense star clusters.