  We study holographic probes dual to heavy quark impurities interpolating
between fundamental and symmetric/antisymmetric tensor representations in
strongly coupled N=4 supersymmetric gauge theory. These correspond to
non-conformal D3- and D5-brane probe embeddings in AdS_5 x S^5 exhibiting flows
on their world-volumes. By examining the asymptotic regimes of the embeddings
and the one-point function of static fields sourced by the boundary impurity,
we conclude that the D5-brane embedding describes the screening of fundamental
quarks in the UV into an antisymmetric source in the IR, whilst the
non-conformal, D3-brane solution interpolates between the symmetric
representation in the UV and fundamental sources in the IR. The D5-brane
embeddings exhibit nontrivial thermodynamics with multiple branches of
solutions, whilst the thermal analogue of the interpolating D3-brane solution
does not appear to exist.
