Make specific author bold using biblatex

boldauthorname.tex

% use boldface for specific author in biblatex bibliography
% http://tex.stackexchange.com/questions/73136/make-specific-author-bold-using-biblatex
%
% usage:
% \input{boldauthorname}
% ...
% \begin{document}
% \boldname{Doe}{John}{J.}
% \printbibliography
% \end{document}
%
% deactivate:
% \boldname{}{}{}
%
\def\makenamesetup{%
  \def\bibnamedelima{~}%
  \def\bibnamedelimb{ }%
  \def\bibnamedelimc{ }%
  \def\bibnamedelimd{ }%
  \def\bibnamedelimi{ }%
  \def\bibinitperiod{.}%
  \def\bibinitdelim{~}%
  \def\bibinithyphendelim{.-}}
\newcommand*{\makename}[2]{\begingroup\makenamesetup\xdef#1{#2}\endgroup}

\newcommand*{\boldname}[3]{%
  \def\lastname{#1}%
  \def\firstname{#2}%
  \def\firstinit{#3}}
\boldname{}{}{}

% Patch new definitions
\renewcommand{\mkbibnamegiven}[1]{%
  \makename{\currname}{#1}%
  \makename{\findname}{\firstname}%
  \makename{\findinit}{\firstinit}%
  \ifboolexpr{ test {\ifdefequal{\currname}{\findname}}%
    or test {\ifdefequal{\currname}{\findinit}} }%
  {\mkbibbold{#1}}{#1}%
}

\renewcommand{\mkbibnamefamily}[1]{%
  \makename{\currname}{#1}%
  \makename{\findname}{\lastname}%
  \ifboolexpr{ test {\ifdefequal{\currname}{\findname}} }%
  {\mkbibbold{#1}}{#1}%
}

Hey!

Sorry for the late response. I think you should change the order of first and last name of the authors to

author = {Paulicke, Denny and Buhtz, Christian and [...]}

Best regards