HST images of the BCG in PKS 0745-191. Left: WFPC2 F814W filter tracing the older stellar population, including prominent dust lanes. Middle-left: ACS FR716N narrow-band image that spans the wavelength range covering the Hα/[N II] emission lines. Contours start at 3σ and increase by factors of two. We highlight the location of the X-ray cavities as seen on the right panel of Figure 1. Middle-right: ACS F475W image tracing the B-band emission. Right: SBC F140LP image tracing the star formation ( ~20 M_⊙ yr⁻¹) with FR716N narrow-band image contours overlaid. We highlight the location of the AGN and the star-forming region. The Hα/[N II] emission trail behind the X-ray cavities is as in Figure 1.