Resonantly enhanced multiphoton ionization, REMPI (2 color, 1+1'), and zero electron kinetic energy-pulsed field ionization, ZEKE-PFI, spectra are reported for the first organometallic radical, CdCH3. The combined REMPI and ZEKE-PFI data have necessitated a change of assignment for one of the bands of the (A) over tilde(2)E<--(X) over tilde(2)A(1) ?A, electronic transition of the neutral radical. The new assignment and the revised molecular parameters are reported. The ZEKE-PFI spectrum yields the adiabatic ionization potential for the CdCH3 radical and four of the six possible vibrational frequencies of its cation. Clearly resolved rotational (K level) structure is observed in some bands of the ZEKE-PFI spectrum, providing a unique experimental test for newly extended ZEKE-PFI rotational selection rules.